Home / 668,726.90-1,003,090.35-385,291.70

Finding the Fourth Proportional to 668,726.90, 1,003,090.35 and 385,291.70

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Solution

The fourth proportional to 668,726.90, 1,003,090.35 and 385,291.70 is: 577,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,726.90 : 1,003,090.35 = 385,291.70 : x
  2. Step 2: Convert to fraction form
    668,726.90/1,003,090.35 = 385,291.70/x
  3. Step 3: Cross multiply
    668,726.90x = 1,003,090.35 × 385,291.70
  4. Step 4: Simplify right side
    668,726.90x = 386,482,386,205.10
  5. Step 5: Solve for x
    x = 386,482,386,205.10/668,726.90
  6. Step 6: Final answer
    x = 577,937.55

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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.