Home / 777,445.76-1,163,535.20-478,116.20

Finding the Fourth Proportional to 777,445.76, 1,163,535.20 and 478,116.20

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Solution

The fourth proportional to 777,445.76, 1,163,535.20 and 478,116.20 is: 715,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,445.76 : 1,163,535.20 = 478,116.20 : x
  2. Step 2: Convert to fraction form
    777,445.76/1,163,535.20 = 478,116.20/x
  3. Step 3: Cross multiply
    777,445.76x = 1,163,535.20 × 478,116.20
  4. Step 4: Simplify right side
    777,445.76x = 556,305,028,390.24
  5. Step 5: Solve for x
    x = 556,305,028,390.24/777,445.76
  6. Step 6: Final answer
    x = 715,554.78

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Double scale
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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.