Home / 858,624.60-1,287,936.90-433,471.80

Finding the Fourth Proportional to 858,624.60, 1,287,936.90 and 433,471.80

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Solution

The fourth proportional to 858,624.60, 1,287,936.90 and 433,471.80 is: 650,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,624.60 : 1,287,936.90 = 433,471.80 : x
  2. Step 2: Convert to fraction form
    858,624.60/1,287,936.90 = 433,471.80/x
  3. Step 3: Cross multiply
    858,624.60x = 1,287,936.90 × 433,471.80
  4. Step 4: Simplify right side
    858,624.60x = 558,284,326,329.42
  5. Step 5: Solve for x
    x = 558,284,326,329.42/858,624.60
  6. Step 6: Final answer
    x = 650,207.70

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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.