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Finding the Fourth Proportional to 606,987.10, 910,480.65 and 291,367.90

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Solution

The fourth proportional to 606,987.10, 910,480.65 and 291,367.90 is: 437,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,987.10 : 910,480.65 = 291,367.90 : x
  2. Step 2: Convert to fraction form
    606,987.10/910,480.65 = 291,367.90/x
  3. Step 3: Cross multiply
    606,987.10x = 910,480.65 × 291,367.90
  4. Step 4: Simplify right side
    606,987.10x = 265,284,834,981.14
  5. Step 5: Solve for x
    x = 265,284,834,981.14/606,987.10
  6. Step 6: Final answer
    x = 437,051.85

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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.