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Finding the Fourth Proportional to 656,999.10, 985,498.65 and 575,642.70

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Solution

The fourth proportional to 656,999.10, 985,498.65 and 575,642.70 is: 863,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,999.10 : 985,498.65 = 575,642.70 : x
  2. Step 2: Convert to fraction form
    656,999.10/985,498.65 = 575,642.70/x
  3. Step 3: Cross multiply
    656,999.10x = 985,498.65 × 575,642.70
  4. Step 4: Simplify right side
    656,999.10x = 567,295,103,732.36
  5. Step 5: Solve for x
    x = 567,295,103,732.36/656,999.10
  6. Step 6: Final answer
    x = 863,464.05

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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.