Home / 1,272,627.90-1,756,207.59-691,831.74

Finding the Fourth Proportional to 1,272,627.90, 1,756,207.59 and 691,831.74

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Solution

The fourth proportional to 1,272,627.90, 1,756,207.59 and 691,831.74 is: 954,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,627.90 : 1,756,207.59 = 691,831.74 : x
  2. Step 2: Convert to fraction form
    1,272,627.90/1,756,207.59 = 691,831.74/x
  3. Step 3: Cross multiply
    1,272,627.90x = 1,756,207.59 × 691,831.74
  4. Step 4: Simplify right side
    1,272,627.90x = 1,215,000,152,790.91
  5. Step 5: Solve for x
    x = 1,215,000,152,790.91/1,272,627.90
  6. Step 6: Final answer
    x = 954,717.52

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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.