Home / 1,068,753.40-1,475,878.80-687,442.12

Finding the Fourth Proportional to 1,068,753.40, 1,475,878.80 and 687,442.12

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Solution

The fourth proportional to 1,068,753.40, 1,475,878.80 and 687,442.12 is: 949,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,753.40 : 1,475,878.80 = 687,442.12 : x
  2. Step 2: Convert to fraction form
    1,068,753.40/1,475,878.80 = 687,442.12/x
  3. Step 3: Cross multiply
    1,068,753.40x = 1,475,878.80 × 687,442.12
  4. Step 4: Simplify right side
    1,068,753.40x = 1,014,581,251,135.06
  5. Step 5: Solve for x
    x = 1,014,581,251,135.06/1,068,753.40
  6. Step 6: Final answer
    x = 949,312.77

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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.