Home / 509,047.20-763,068.60-284,515.20

Finding the Fourth Proportional to 509,047.20, 763,068.60 and 284,515.20

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Solution

The fourth proportional to 509,047.20, 763,068.60 and 284,515.20 is: 426,492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,047.20 : 763,068.60 = 284,515.20 : x
  2. Step 2: Convert to fraction form
    509,047.20/763,068.60 = 284,515.20/x
  3. Step 3: Cross multiply
    509,047.20x = 763,068.60 × 284,515.20
  4. Step 4: Simplify right side
    509,047.20x = 217,104,615,342.72
  5. Step 5: Solve for x
    x = 217,104,615,342.72/509,047.20
  6. Step 6: Final answer
    x = 426,492.11

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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.