Home / 790,785.60-1,186,264.80-765,902.40

Finding the Fourth Proportional to 790,785.60, 1,186,264.80 and 765,902.40

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Solution

The fourth proportional to 790,785.60, 1,186,264.80 and 765,902.40 is: 1,148,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,785.60 : 1,186,264.80 = 765,902.40 : x
  2. Step 2: Convert to fraction form
    790,785.60/1,186,264.80 = 765,902.40/x
  3. Step 3: Cross multiply
    790,785.60x = 1,186,264.80 × 765,902.40
  4. Step 4: Simplify right side
    790,785.60x = 908,563,057,355.52
  5. Step 5: Solve for x
    x = 908,563,057,355.52/790,785.60
  6. Step 6: Final answer
    x = 1,148,937.28

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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.