Home / 816,831.10-1,225,246.65-751,512.70

Finding the Fourth Proportional to 816,831.10, 1,225,246.65 and 751,512.70

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Solution

The fourth proportional to 816,831.10, 1,225,246.65 and 751,512.70 is: 1,127,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,831.10 : 1,225,246.65 = 751,512.70 : x
  2. Step 2: Convert to fraction form
    816,831.10/1,225,246.65 = 751,512.70/x
  3. Step 3: Cross multiply
    816,831.10x = 1,225,246.65 × 751,512.70
  4. Step 4: Simplify right side
    816,831.10x = 920,788,418,107.46
  5. Step 5: Solve for x
    x = 920,788,418,107.46/816,831.10
  6. Step 6: Final answer
    x = 1,127,269.05

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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.