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Finding the Fourth Proportional to 545,420.30, 752,641.56 and 341,461.88

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Solution

The fourth proportional to 545,420.30, 752,641.56 and 341,461.88 is: 471,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,420.30 : 752,641.56 = 341,461.88 : x
  2. Step 2: Convert to fraction form
    545,420.30/752,641.56 = 341,461.88/x
  3. Step 3: Cross multiply
    545,420.30x = 752,641.56 × 341,461.88
  4. Step 4: Simplify right side
    545,420.30x = 256,998,402,043.73
  5. Step 5: Solve for x
    x = 256,998,402,043.73/545,420.30
  6. Step 6: Final answer
    x = 471,193.32

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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.