Home / 980,230.20-1,470,345.30-389,254.20

Finding the Fourth Proportional to 980,230.20, 1,470,345.30 and 389,254.20

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Solution

The fourth proportional to 980,230.20, 1,470,345.30 and 389,254.20 is: 583,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,230.20 : 1,470,345.30 = 389,254.20 : x
  2. Step 2: Convert to fraction form
    980,230.20/1,470,345.30 = 389,254.20/x
  3. Step 3: Cross multiply
    980,230.20x = 1,470,345.30 × 389,254.20
  4. Step 4: Simplify right side
    980,230.20x = 572,338,083,475.26
  5. Step 5: Solve for x
    x = 572,338,083,475.26/980,230.20
  6. Step 6: Final answer
    x = 583,881.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.