Home / 668,726.90-1,003,090.35-440,404.10

Finding the Fourth Proportional to 668,726.90, 1,003,090.35 and 440,404.10

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Solution

The fourth proportional to 668,726.90, 1,003,090.35 and 440,404.10 is: 660,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,726.90 : 1,003,090.35 = 440,404.10 : x
  2. Step 2: Convert to fraction form
    668,726.90/1,003,090.35 = 440,404.10/x
  3. Step 3: Cross multiply
    668,726.90x = 1,003,090.35 × 440,404.10
  4. Step 4: Simplify right side
    668,726.90x = 441,765,102,810.44
  5. Step 5: Solve for x
    x = 441,765,102,810.44/668,726.90
  6. Step 6: Final answer
    x = 660,606.15

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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.