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Finding the Fourth Proportional to 660,354.04, 991,114.26 and 361,107.64

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Solution

The fourth proportional to 660,354.04, 991,114.26 and 361,107.64 is: 541,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,354.04 : 991,114.26 = 361,107.64 : x
  2. Step 2: Convert to fraction form
    660,354.04/991,114.26 = 361,107.64/x
  3. Step 3: Cross multiply
    660,354.04x = 991,114.26 × 361,107.64
  4. Step 4: Simplify right side
    660,354.04x = 357,898,931,398.95
  5. Step 5: Solve for x
    x = 357,898,931,398.95/660,354.04
  6. Step 6: Final answer
    x = 541,980.38

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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.