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Finding the Fourth Proportional to 425,294.68, 586,222.54 and 287,430.48

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Solution

The fourth proportional to 425,294.68, 586,222.54 and 287,430.48 is: 396,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,294.68 : 586,222.54 = 287,430.48 : x
  2. Step 2: Convert to fraction form
    425,294.68/586,222.54 = 287,430.48/x
  3. Step 3: Cross multiply
    425,294.68x = 586,222.54 × 287,430.48
  4. Step 4: Simplify right side
    425,294.68x = 168,498,226,059.02
  5. Step 5: Solve for x
    x = 168,498,226,059.02/425,294.68
  6. Step 6: Final answer
    x = 396,191.71

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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.