Home / 478,826.65-660,788.10-261,035.47

Finding the Fourth Proportional to 478,826.65, 660,788.10 and 261,035.47

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Solution

The fourth proportional to 478,826.65, 660,788.10 and 261,035.47 is: 360,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,826.65 : 660,788.10 = 261,035.47 : x
  2. Step 2: Convert to fraction form
    478,826.65/660,788.10 = 261,035.47/x
  3. Step 3: Cross multiply
    478,826.65x = 660,788.10 × 261,035.47
  4. Step 4: Simplify right side
    478,826.65x = 172,489,132,253.91
  5. Step 5: Solve for x
    x = 172,489,132,253.91/478,826.65
  6. Step 6: Final answer
    x = 360,232.94

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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.