Home / 522,780.60-782,097.30-453,430.20

Finding the Fourth Proportional to 522,780.60, 782,097.30 and 453,430.20

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Solution

The fourth proportional to 522,780.60, 782,097.30 and 453,430.20 is: 678,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,780.60 : 782,097.30 = 453,430.20 : x
  2. Step 2: Convert to fraction form
    522,780.60/782,097.30 = 453,430.20/x
  3. Step 3: Cross multiply
    522,780.60x = 782,097.30 × 453,430.20
  4. Step 4: Simplify right side
    522,780.60x = 354,626,535,158.46
  5. Step 5: Solve for x
    x = 354,626,535,158.46/522,780.60
  6. Step 6: Final answer
    x = 678,346.78

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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.