Home / 1,068,448.32-1,475,459.28-687,139.20

Finding the Fourth Proportional to 1,068,448.32, 1,475,459.28 and 687,139.20

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Solution

The fourth proportional to 1,068,448.32, 1,475,459.28 and 687,139.20 is: 948,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,448.32 : 1,475,459.28 = 687,139.20 : x
  2. Step 2: Convert to fraction form
    1,068,448.32/1,475,459.28 = 687,139.20/x
  3. Step 3: Cross multiply
    1,068,448.32x = 1,475,459.28 × 687,139.20
  4. Step 4: Simplify right side
    1,068,448.32x = 1,013,845,909,291.78
  5. Step 5: Solve for x
    x = 1,013,845,909,291.78/1,068,448.32
  6. Step 6: Final answer
    x = 948,895.60

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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.