Home / 838,488.72-1,157,504.40-494,216.16

Finding the Fourth Proportional to 838,488.72, 1,157,504.40 and 494,216.16

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Solution

The fourth proportional to 838,488.72, 1,157,504.40 and 494,216.16 is: 682,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,488.72 : 1,157,504.40 = 494,216.16 : x
  2. Step 2: Convert to fraction form
    838,488.72/1,157,504.40 = 494,216.16/x
  3. Step 3: Cross multiply
    838,488.72x = 1,157,504.40 × 494,216.16
  4. Step 4: Simplify right side
    838,488.72x = 572,057,379,751.10
  5. Step 5: Solve for x
    x = 572,057,379,751.10/838,488.72
  6. Step 6: Final answer
    x = 682,248.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.