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Finding the Fourth Proportional to 546,404.80, 819,607.20 and 476,420.80

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Solution

The fourth proportional to 546,404.80, 819,607.20 and 476,420.80 is: 714,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,404.80 : 819,607.20 = 476,420.80 : x
  2. Step 2: Convert to fraction form
    546,404.80/819,607.20 = 476,420.80/x
  3. Step 3: Cross multiply
    546,404.80x = 819,607.20 × 476,420.80
  4. Step 4: Simplify right side
    546,404.80x = 390,477,917,909.76
  5. Step 5: Solve for x
    x = 390,477,917,909.76/546,404.80
  6. Step 6: Final answer
    x = 714,631.20

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Similar ratio
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1.5x scale

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.