Home / 509,040.02-763,490.28-281,756.04

Finding the Fourth Proportional to 509,040.02, 763,490.28 and 281,756.04

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Solution

The fourth proportional to 509,040.02, 763,490.28 and 281,756.04 is: 422,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,040.02 : 763,490.28 = 281,756.04 : x
  2. Step 2: Convert to fraction form
    509,040.02/763,490.28 = 281,756.04/x
  3. Step 3: Cross multiply
    509,040.02x = 763,490.28 × 281,756.04
  4. Step 4: Simplify right side
    509,040.02x = 215,117,997,871.29
  5. Step 5: Solve for x
    x = 215,117,997,871.29/509,040.02
  6. Step 6: Final answer
    x = 422,595.45

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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.