Home / 784,363.80-1,176,545.70-310,805.40

Finding the Fourth Proportional to 784,363.80, 1,176,545.70 and 310,805.40

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Solution

The fourth proportional to 784,363.80, 1,176,545.70 and 310,805.40 is: 466,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,363.80 : 1,176,545.70 = 310,805.40 : x
  2. Step 2: Convert to fraction form
    784,363.80/1,176,545.70 = 310,805.40/x
  3. Step 3: Cross multiply
    784,363.80x = 1,176,545.70 × 310,805.40
  4. Step 4: Simplify right side
    784,363.80x = 365,676,756,906.78
  5. Step 5: Solve for x
    x = 365,676,756,906.78/784,363.80
  6. Step 6: Final answer
    x = 466,208.10

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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.