Home / 1,402,259.40-2,103,389.10-515,680.20

Finding the Fourth Proportional to 1,402,259.40, 2,103,389.10 and 515,680.20

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Solution

The fourth proportional to 1,402,259.40, 2,103,389.10 and 515,680.20 is: 773,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,259.40 : 2,103,389.10 = 515,680.20 : x
  2. Step 2: Convert to fraction form
    1,402,259.40/2,103,389.10 = 515,680.20/x
  3. Step 3: Cross multiply
    1,402,259.40x = 2,103,389.10 × 515,680.20
  4. Step 4: Simplify right side
    1,402,259.40x = 1,084,676,111,765.82
  5. Step 5: Solve for x
    x = 1,084,676,111,765.82/1,402,259.40
  6. Step 6: Final answer
    x = 773,520.30

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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.