Home / 627,123.68-865,432.32-340,641.44

Finding the Fourth Proportional to 627,123.68, 865,432.32 and 340,641.44

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Solution

The fourth proportional to 627,123.68, 865,432.32 and 340,641.44 is: 470,086.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,123.68 : 865,432.32 = 340,641.44 : x
  2. Step 2: Convert to fraction form
    627,123.68/865,432.32 = 340,641.44/x
  3. Step 3: Cross multiply
    627,123.68x = 865,432.32 × 340,641.44
  4. Step 4: Simplify right side
    627,123.68x = 294,802,111,707.34
  5. Step 5: Solve for x
    x = 294,802,111,707.34/627,123.68
  6. Step 6: Final answer
    x = 470,086.08

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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.