Home / 1,108,709.20-1,663,063.80-478,853.20

Finding the Fourth Proportional to 1,108,709.20, 1,663,063.80 and 478,853.20

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Solution

The fourth proportional to 1,108,709.20, 1,663,063.80 and 478,853.20 is: 718,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,709.20 : 1,663,063.80 = 478,853.20 : x
  2. Step 2: Convert to fraction form
    1,108,709.20/1,663,063.80 = 478,853.20/x
  3. Step 3: Cross multiply
    1,108,709.20x = 1,663,063.80 × 478,853.20
  4. Step 4: Simplify right side
    1,108,709.20x = 796,363,422,434.16
  5. Step 5: Solve for x
    x = 796,363,422,434.16/1,108,709.20
  6. Step 6: Final answer
    x = 718,279.80

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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.