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Finding the Fourth Proportional to 575,207.20, 862,802.70 and 259,663.60

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Solution

The fourth proportional to 575,207.20, 862,802.70 and 259,663.60 is: 389,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,207.20 : 862,802.70 = 259,663.60 : x
  2. Step 2: Convert to fraction form
    575,207.20/862,802.70 = 259,663.60/x
  3. Step 3: Cross multiply
    575,207.20x = 862,802.70 × 259,663.60
  4. Step 4: Simplify right side
    575,207.20x = 224,038,455,171.72
  5. Step 5: Solve for x
    x = 224,038,455,171.72/575,207.20
  6. Step 6: Final answer
    x = 389,491.74

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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.