Home / 765,640.22-1,056,583.50-426,188.66

Finding the Fourth Proportional to 765,640.22, 1,056,583.50 and 426,188.66

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Solution

The fourth proportional to 765,640.22, 1,056,583.50 and 426,188.66 is: 588,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,640.22 : 1,056,583.50 = 426,188.66 : x
  2. Step 2: Convert to fraction form
    765,640.22/1,056,583.50 = 426,188.66/x
  3. Step 3: Cross multiply
    765,640.22x = 1,056,583.50 × 426,188.66
  4. Step 4: Simplify right side
    765,640.22x = 450,303,906,320.59
  5. Step 5: Solve for x
    x = 450,303,906,320.59/765,640.22
  6. Step 6: Final answer
    x = 588,140.35

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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.