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Finding the Fourth Proportional to 545,598.72, 752,928.48 and 319,200.48

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Solution

The fourth proportional to 545,598.72, 752,928.48 and 319,200.48 is: 440,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,598.72 : 752,928.48 = 319,200.48 : x
  2. Step 2: Convert to fraction form
    545,598.72/752,928.48 = 319,200.48/x
  3. Step 3: Cross multiply
    545,598.72x = 752,928.48 × 319,200.48
  4. Step 4: Simplify right side
    545,598.72x = 240,335,132,221.67
  5. Step 5: Solve for x
    x = 240,335,132,221.67/545,598.72
  6. Step 6: Final answer
    x = 440,497.98

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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.