Home / 578,032.80-867,049.20-438,064.80

Finding the Fourth Proportional to 578,032.80, 867,049.20 and 438,064.80

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Solution

The fourth proportional to 578,032.80, 867,049.20 and 438,064.80 is: 657,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,032.80 : 867,049.20 = 438,064.80 : x
  2. Step 2: Convert to fraction form
    578,032.80/867,049.20 = 438,064.80/x
  3. Step 3: Cross multiply
    578,032.80x = 867,049.20 × 438,064.80
  4. Step 4: Simplify right side
    578,032.80x = 379,823,734,388.16
  5. Step 5: Solve for x
    x = 379,823,734,388.16/578,032.80
  6. Step 6: Final answer
    x = 657,097.20

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Similar ratio
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1.5x scale

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.