Home / 1,389,484.80-2,084,227.20-442,951.20

Finding the Fourth Proportional to 1,389,484.80, 2,084,227.20 and 442,951.20

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Solution

The fourth proportional to 1,389,484.80, 2,084,227.20 and 442,951.20 is: 664,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,484.80 : 2,084,227.20 = 442,951.20 : x
  2. Step 2: Convert to fraction form
    1,389,484.80/2,084,227.20 = 442,951.20/x
  3. Step 3: Cross multiply
    1,389,484.80x = 2,084,227.20 × 442,951.20
  4. Step 4: Simplify right side
    1,389,484.80x = 923,210,939,312.64
  5. Step 5: Solve for x
    x = 923,210,939,312.64/1,389,484.80
  6. Step 6: Final answer
    x = 664,426.80

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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.