Home / 487,739.04-731,459.76-172,122.24

Finding the Fourth Proportional to 487,739.04, 731,459.76 and 172,122.24

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Solution

The fourth proportional to 487,739.04, 731,459.76 and 172,122.24 is: 258,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,739.04 : 731,459.76 = 172,122.24 : x
  2. Step 2: Convert to fraction form
    487,739.04/731,459.76 = 172,122.24/x
  3. Step 3: Cross multiply
    487,739.04x = 731,459.76 × 172,122.24
  4. Step 4: Simplify right side
    487,739.04x = 125,900,492,361.06
  5. Step 5: Solve for x
    x = 125,900,492,361.06/487,739.04
  6. Step 6: Final answer
    x = 258,130.85

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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.