Home / 499,187.84-748,921.28-288,440.96

Finding the Fourth Proportional to 499,187.84, 748,921.28 and 288,440.96

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Solution

The fourth proportional to 499,187.84, 748,921.28 and 288,440.96 is: 432,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,187.84 : 748,921.28 = 288,440.96 : x
  2. Step 2: Convert to fraction form
    499,187.84/748,921.28 = 288,440.96/x
  3. Step 3: Cross multiply
    499,187.84x = 748,921.28 × 288,440.96
  4. Step 4: Simplify right side
    499,187.84x = 216,019,572,967.63
  5. Step 5: Solve for x
    x = 216,019,572,967.63/499,187.84
  6. Step 6: Final answer
    x = 432,742.06

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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.