Home / 1,108,715.20-1,663,072.80-478,859.20

Finding the Fourth Proportional to 1,108,715.20, 1,663,072.80 and 478,859.20

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Solution

The fourth proportional to 1,108,715.20, 1,663,072.80 and 478,859.20 is: 718,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,715.20 : 1,663,072.80 = 478,859.20 : x
  2. Step 2: Convert to fraction form
    1,108,715.20/1,663,072.80 = 478,859.20/x
  3. Step 3: Cross multiply
    1,108,715.20x = 1,663,072.80 × 478,859.20
  4. Step 4: Simplify right side
    1,108,715.20x = 796,377,710,549.76
  5. Step 5: Solve for x
    x = 796,377,710,549.76/1,108,715.20
  6. Step 6: Final answer
    x = 718,288.80

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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.