Home / 712,777.92-1,069,016.40-424,717.28

Finding the Fourth Proportional to 712,777.92, 1,069,016.40 and 424,717.28

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Solution

The fourth proportional to 712,777.92, 1,069,016.40 and 424,717.28 is: 636,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,777.92 : 1,069,016.40 = 424,717.28 : x
  2. Step 2: Convert to fraction form
    712,777.92/1,069,016.40 = 424,717.28/x
  3. Step 3: Cross multiply
    712,777.92x = 1,069,016.40 × 424,717.28
  4. Step 4: Simplify right side
    712,777.92x = 454,029,737,683.39
  5. Step 5: Solve for x
    x = 454,029,737,683.39/712,777.92
  6. Step 6: Final answer
    x = 636,986.25

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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.