Home / 559,972.12-772,742.28-318,250.48

Finding the Fourth Proportional to 559,972.12, 772,742.28 and 318,250.48

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Solution

The fourth proportional to 559,972.12, 772,742.28 and 318,250.48 is: 439,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,972.12 : 772,742.28 = 318,250.48 : x
  2. Step 2: Convert to fraction form
    559,972.12/772,742.28 = 318,250.48/x
  3. Step 3: Cross multiply
    559,972.12x = 772,742.28 × 318,250.48
  4. Step 4: Simplify right side
    559,972.12x = 245,925,601,526.29
  5. Step 5: Solve for x
    x = 245,925,601,526.29/559,972.12
  6. Step 6: Final answer
    x = 439,174.72

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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.