Home / 437,915.30-657,132.15-288,587.30

Finding the Fourth Proportional to 437,915.30, 657,132.15 and 288,587.30

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Solution

The fourth proportional to 437,915.30, 657,132.15 and 288,587.30 is: 433,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,915.30 : 657,132.15 = 288,587.30 : x
  2. Step 2: Convert to fraction form
    437,915.30/657,132.15 = 288,587.30/x
  3. Step 3: Cross multiply
    437,915.30x = 657,132.15 × 288,587.30
  4. Step 4: Simplify right side
    437,915.30x = 189,639,992,911.70
  5. Step 5: Solve for x
    x = 189,639,992,911.70/437,915.30
  6. Step 6: Final answer
    x = 433,051.76

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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.