Home / 393,347.03-589,857.89-123,385.13

Finding the Fourth Proportional to 393,347.03, 589,857.89 and 123,385.13

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Solution

The fourth proportional to 393,347.03, 589,857.89 and 123,385.13 is: 185,026.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,347.03 : 589,857.89 = 123,385.13 : x
  2. Step 2: Convert to fraction form
    393,347.03/589,857.89 = 123,385.13/x
  3. Step 3: Cross multiply
    393,347.03x = 589,857.89 × 123,385.13
  4. Step 4: Simplify right side
    393,347.03x = 72,779,688,872.96
  5. Step 5: Solve for x
    x = 72,779,688,872.96/393,347.03
  6. Step 6: Final answer
    x = 185,026.66

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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.