Home / 709,915.20-1,064,872.80-651,854.40

Finding the Fourth Proportional to 709,915.20, 1,064,872.80 and 651,854.40

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Solution

The fourth proportional to 709,915.20, 1,064,872.80 and 651,854.40 is: 977,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,915.20 : 1,064,872.80 = 651,854.40 : x
  2. Step 2: Convert to fraction form
    709,915.20/1,064,872.80 = 651,854.40/x
  3. Step 3: Cross multiply
    709,915.20x = 1,064,872.80 × 651,854.40
  4. Step 4: Simplify right side
    709,915.20x = 694,142,020,120.32
  5. Step 5: Solve for x
    x = 694,142,020,120.32/709,915.20
  6. Step 6: Final answer
    x = 977,781.60

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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.