Home / 1,107,678.80-1,661,518.20-359,800.40

Finding the Fourth Proportional to 1,107,678.80, 1,661,518.20 and 359,800.40

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Solution

The fourth proportional to 1,107,678.80, 1,661,518.20 and 359,800.40 is: 539,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,678.80 : 1,661,518.20 = 359,800.40 : x
  2. Step 2: Convert to fraction form
    1,107,678.80/1,661,518.20 = 359,800.40/x
  3. Step 3: Cross multiply
    1,107,678.80x = 1,661,518.20 × 359,800.40
  4. Step 4: Simplify right side
    1,107,678.80x = 597,814,912,967.28
  5. Step 5: Solve for x
    x = 597,814,912,967.28/1,107,678.80
  6. Step 6: Final answer
    x = 539,700.60

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Double scale
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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.