Home / 578,040.30-867,060.45-438,072.30

Finding the Fourth Proportional to 578,040.30, 867,060.45 and 438,072.30

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Solution

The fourth proportional to 578,040.30, 867,060.45 and 438,072.30 is: 657,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,040.30 : 867,060.45 = 438,072.30 : x
  2. Step 2: Convert to fraction form
    578,040.30/867,060.45 = 438,072.30/x
  3. Step 3: Cross multiply
    578,040.30x = 867,060.45 × 438,072.30
  4. Step 4: Simplify right side
    578,040.30x = 379,835,165,570.54
  5. Step 5: Solve for x
    x = 379,835,165,570.54/578,040.30
  6. Step 6: Final answer
    x = 657,108.45

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Similar ratio
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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.