Home / 1,125,470.66-1,687,680.54-405,717.56

Finding the Fourth Proportional to 1,125,470.66, 1,687,680.54 and 405,717.56

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Solution

The fourth proportional to 1,125,470.66, 1,687,680.54 and 405,717.56 is: 608,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,470.66 : 1,687,680.54 = 405,717.56 : x
  2. Step 2: Convert to fraction form
    1,125,470.66/1,687,680.54 = 405,717.56/x
  3. Step 3: Cross multiply
    1,125,470.66x = 1,687,680.54 × 405,717.56
  4. Step 4: Simplify right side
    1,125,470.66x = 684,721,630,748.28
  5. Step 5: Solve for x
    x = 684,721,630,748.28/1,125,470.66
  6. Step 6: Final answer
    x = 608,386.92

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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.