Home / 480,929.40-721,459.44-200,381.04

Finding the Fourth Proportional to 480,929.40, 721,459.44 and 200,381.04

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Solution

The fourth proportional to 480,929.40, 721,459.44 and 200,381.04 is: 300,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,929.40 : 721,459.44 = 200,381.04 : x
  2. Step 2: Convert to fraction form
    480,929.40/721,459.44 = 200,381.04/x
  3. Step 3: Cross multiply
    480,929.40x = 721,459.44 × 200,381.04
  4. Step 4: Simplify right side
    480,929.40x = 144,566,792,905.02
  5. Step 5: Solve for x
    x = 144,566,792,905.02/480,929.40
  6. Step 6: Final answer
    x = 300,598.78

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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.