Home / 971,721.30-1,457,144.55-372,483.30

Finding the Fourth Proportional to 971,721.30, 1,457,144.55 and 372,483.30

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Solution

The fourth proportional to 971,721.30, 1,457,144.55 and 372,483.30 is: 558,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,721.30 : 1,457,144.55 = 372,483.30 : x
  2. Step 2: Convert to fraction form
    971,721.30/1,457,144.55 = 372,483.30/x
  3. Step 3: Cross multiply
    971,721.30x = 1,457,144.55 × 372,483.30
  4. Step 4: Simplify right side
    971,721.30x = 542,762,010,561.02
  5. Step 5: Solve for x
    x = 542,762,010,561.02/971,721.30
  6. Step 6: Final answer
    x = 558,557.28

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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.