Home / 478,827.65-660,789.48-261,036.47

Finding the Fourth Proportional to 478,827.65, 660,789.48 and 261,036.47

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Solution

The fourth proportional to 478,827.65, 660,789.48 and 261,036.47 is: 360,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,827.65 : 660,789.48 = 261,036.47 : x
  2. Step 2: Convert to fraction form
    478,827.65/660,789.48 = 261,036.47/x
  3. Step 3: Cross multiply
    478,827.65x = 660,789.48 × 261,036.47
  4. Step 4: Simplify right side
    478,827.65x = 172,490,153,272.34
  5. Step 5: Solve for x
    x = 172,490,153,272.34/478,827.65
  6. Step 6: Final answer
    x = 360,234.32

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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.