Home / 1,255,445.60-1,732,345.20-802,415.20

Finding the Fourth Proportional to 1,255,445.60, 1,732,345.20 and 802,415.20

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Solution

The fourth proportional to 1,255,445.60, 1,732,345.20 and 802,415.20 is: 1,107,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,445.60 : 1,732,345.20 = 802,415.20 : x
  2. Step 2: Convert to fraction form
    1,255,445.60/1,732,345.20 = 802,415.20/x
  3. Step 3: Cross multiply
    1,255,445.60x = 1,732,345.20 × 802,415.20
  4. Step 4: Simplify right side
    1,255,445.60x = 1,390,060,120,127.04
  5. Step 5: Solve for x
    x = 1,390,060,120,127.04/1,255,445.60
  6. Step 6: Final answer
    x = 1,107,224.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.