Home / 1,052,066.80-1,578,100.20-387,132.40

Finding the Fourth Proportional to 1,052,066.80, 1,578,100.20 and 387,132.40

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Solution

The fourth proportional to 1,052,066.80, 1,578,100.20 and 387,132.40 is: 580,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,066.80 : 1,578,100.20 = 387,132.40 : x
  2. Step 2: Convert to fraction form
    1,052,066.80/1,578,100.20 = 387,132.40/x
  3. Step 3: Cross multiply
    1,052,066.80x = 1,578,100.20 × 387,132.40
  4. Step 4: Simplify right side
    1,052,066.80x = 610,933,717,866.48
  5. Step 5: Solve for x
    x = 610,933,717,866.48/1,052,066.80
  6. Step 6: Final answer
    x = 580,698.60

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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.