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Finding the Fourth Proportional to 545,600.72, 752,931.24 and 319,202.48

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Solution

The fourth proportional to 545,600.72, 752,931.24 and 319,202.48 is: 440,500.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,600.72 : 752,931.24 = 319,202.48 : x
  2. Step 2: Convert to fraction form
    545,600.72/752,931.24 = 319,202.48/x
  3. Step 3: Cross multiply
    545,600.72x = 752,931.24 × 319,202.48
  4. Step 4: Simplify right side
    545,600.72x = 240,337,519,077.48
  5. Step 5: Solve for x
    x = 240,337,519,077.48/545,600.72
  6. Step 6: Final answer
    x = 440,500.74

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1.5x scale

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.