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Finding the Fourth Proportional to 546,419.20, 819,628.80 and 497,430.40

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Solution

The fourth proportional to 546,419.20, 819,628.80 and 497,430.40 is: 746,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,419.20 : 819,628.80 = 497,430.40 : x
  2. Step 2: Convert to fraction form
    546,419.20/819,628.80 = 497,430.40/x
  3. Step 3: Cross multiply
    546,419.20x = 819,628.80 × 497,430.40
  4. Step 4: Simplify right side
    546,419.20x = 407,708,281,835.52
  5. Step 5: Solve for x
    x = 407,708,281,835.52/546,419.20
  6. Step 6: Final answer
    x = 746,145.60

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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.