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Finding the Fourth Proportional to 581,609.60, 803,233.16 and 518,209.70

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Solution

The fourth proportional to 581,609.60, 803,233.16 and 518,209.70 is: 715,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,609.60 : 803,233.16 = 518,209.70 : x
  2. Step 2: Convert to fraction form
    581,609.60/803,233.16 = 518,209.70/x
  3. Step 3: Cross multiply
    581,609.60x = 803,233.16 × 518,209.70
  4. Step 4: Simplify right side
    581,609.60x = 416,243,214,873.65
  5. Step 5: Solve for x
    x = 416,243,214,873.65/581,609.60
  6. Step 6: Final answer
    x = 715,674.59

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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.