Home / 1,100,385.60-1,650,713.76-426,478.08

Finding the Fourth Proportional to 1,100,385.60, 1,650,713.76 and 426,478.08

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Solution

The fourth proportional to 1,100,385.60, 1,650,713.76 and 426,478.08 is: 639,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,385.60 : 1,650,713.76 = 426,478.08 : x
  2. Step 2: Convert to fraction form
    1,100,385.60/1,650,713.76 = 426,478.08/x
  3. Step 3: Cross multiply
    1,100,385.60x = 1,650,713.76 × 426,478.08
  4. Step 4: Simplify right side
    1,100,385.60x = 703,993,234,994.38
  5. Step 5: Solve for x
    x = 703,993,234,994.38/1,100,385.60
  6. Step 6: Final answer
    x = 639,769.58

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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.