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Finding the Fourth Proportional to 478,873.12, 718,309.66 and 454,927.52

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Solution

The fourth proportional to 478,873.12, 718,309.66 and 454,927.52 is: 682,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,873.12 : 718,309.66 = 454,927.52 : x
  2. Step 2: Convert to fraction form
    478,873.12/718,309.66 = 454,927.52/x
  3. Step 3: Cross multiply
    478,873.12x = 718,309.66 × 454,927.52
  4. Step 4: Simplify right side
    478,873.12x = 326,778,832,215.84
  5. Step 5: Solve for x
    x = 326,778,832,215.84/478,873.12
  6. Step 6: Final answer
    x = 682,391.26

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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.