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Finding the Fourth Proportional to 559,580.28, 772,191.84 and 317,830.92

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Solution

The fourth proportional to 559,580.28, 772,191.84 and 317,830.92 is: 438,590.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,580.28 : 772,191.84 = 317,830.92 : x
  2. Step 2: Convert to fraction form
    559,580.28/772,191.84 = 317,830.92/x
  3. Step 3: Cross multiply
    559,580.28x = 772,191.84 × 317,830.92
  4. Step 4: Simplify right side
    559,580.28x = 245,426,442,923.69
  5. Step 5: Solve for x
    x = 245,426,442,923.69/559,580.28
  6. Step 6: Final answer
    x = 438,590.23

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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.