Home / 581,373.80-869,987.10-403,044.20

Finding the Fourth Proportional to 581,373.80, 869,987.10 and 403,044.20

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Solution

The fourth proportional to 581,373.80, 869,987.10 and 403,044.20 is: 603,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,373.80 : 869,987.10 = 403,044.20 : x
  2. Step 2: Convert to fraction form
    581,373.80/869,987.10 = 403,044.20/x
  3. Step 3: Cross multiply
    581,373.80x = 869,987.10 × 403,044.20
  4. Step 4: Simplify right side
    581,373.80x = 350,643,254,729.82
  5. Step 5: Solve for x
    x = 350,643,254,729.82/581,373.80
  6. Step 6: Final answer
    x = 603,128.75

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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.