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Finding the Fourth Proportional to 887,559, 1,224,831.42 and 485,151

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Solution

The fourth proportional to 887,559, 1,224,831.42 and 485,151 is: 669,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,559 : 1,224,831.42 = 485,151 : x
  2. Step 2: Convert to fraction form
    887,559/1,224,831.42 = 485,151/x
  3. Step 3: Cross multiply
    887,559x = 1,224,831.42 × 485,151
  4. Step 4: Simplify right side
    887,559x = 594,228,188,244.42
  5. Step 5: Solve for x
    x = 594,228,188,244.42/887,559
  6. Step 6: Final answer
    x = 669,508.38

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1.5x scale

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.