Home / 765,604.40-1,056,512.04-426,065.36

Finding the Fourth Proportional to 765,604.40, 1,056,512.04 and 426,065.36

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Solution

The fourth proportional to 765,604.40, 1,056,512.04 and 426,065.36 is: 587,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,604.40 : 1,056,512.04 = 426,065.36 : x
  2. Step 2: Convert to fraction form
    765,604.40/1,056,512.04 = 426,065.36/x
  3. Step 3: Cross multiply
    765,604.40x = 1,056,512.04 × 426,065.36
  4. Step 4: Simplify right side
    765,604.40x = 450,143,182,666.93
  5. Step 5: Solve for x
    x = 450,143,182,666.93/765,604.40
  6. Step 6: Final answer
    x = 587,957.94

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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.