Home / 717,820.32-1,077,179.40-291,356.13

Finding the Fourth Proportional to 717,820.32, 1,077,179.40 and 291,356.13

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Solution

The fourth proportional to 717,820.32, 1,077,179.40 and 291,356.13 is: 437,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,820.32 : 1,077,179.40 = 291,356.13 : x
  2. Step 2: Convert to fraction form
    717,820.32/1,077,179.40 = 291,356.13/x
  3. Step 3: Cross multiply
    717,820.32x = 1,077,179.40 × 291,356.13
  4. Step 4: Simplify right side
    717,820.32x = 313,842,821,299.72
  5. Step 5: Solve for x
    x = 313,842,821,299.72/717,820.32
  6. Step 6: Final answer
    x = 437,216.41

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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.