Home / 947,119.80-1,307,008.85-517,388.88

Finding the Fourth Proportional to 947,119.80, 1,307,008.85 and 517,388.88

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Solution

The fourth proportional to 947,119.80, 1,307,008.85 and 517,388.88 is: 713,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,119.80 : 1,307,008.85 = 517,388.88 : x
  2. Step 2: Convert to fraction form
    947,119.80/1,307,008.85 = 517,388.88/x
  3. Step 3: Cross multiply
    947,119.80x = 1,307,008.85 × 517,388.88
  4. Step 4: Simplify right side
    947,119.80x = 676,231,842,464.64
  5. Step 5: Solve for x
    x = 676,231,842,464.64/947,119.80
  6. Step 6: Final answer
    x = 713,987.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.