Home / 614,736.20-922,104.30-425,779.40

Finding the Fourth Proportional to 614,736.20, 922,104.30 and 425,779.40

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Solution

The fourth proportional to 614,736.20, 922,104.30 and 425,779.40 is: 638,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,736.20 : 922,104.30 = 425,779.40 : x
  2. Step 2: Convert to fraction form
    614,736.20/922,104.30 = 425,779.40/x
  3. Step 3: Cross multiply
    614,736.20x = 922,104.30 × 425,779.40
  4. Step 4: Simplify right side
    614,736.20x = 392,613,015,591.42
  5. Step 5: Solve for x
    x = 392,613,015,591.42/614,736.20
  6. Step 6: Final answer
    x = 638,669.10

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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.