Home / 912,328.80-1,368,493.20-379,672.80

Finding the Fourth Proportional to 912,328.80, 1,368,493.20 and 379,672.80

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Solution

The fourth proportional to 912,328.80, 1,368,493.20 and 379,672.80 is: 569,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,328.80 : 1,368,493.20 = 379,672.80 : x
  2. Step 2: Convert to fraction form
    912,328.80/1,368,493.20 = 379,672.80/x
  3. Step 3: Cross multiply
    912,328.80x = 1,368,493.20 × 379,672.80
  4. Step 4: Simplify right side
    912,328.80x = 519,579,645,024.96
  5. Step 5: Solve for x
    x = 519,579,645,024.96/912,328.80
  6. Step 6: Final answer
    x = 569,509.20

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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.