Home / 1,187,143.01-1,780,701.36-288,585.60

Finding the Fourth Proportional to 1,187,143.01, 1,780,701.36 and 288,585.60

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Solution

The fourth proportional to 1,187,143.01, 1,780,701.36 and 288,585.60 is: 432,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,143.01 : 1,780,701.36 = 288,585.60 : x
  2. Step 2: Convert to fraction form
    1,187,143.01/1,780,701.36 = 288,585.60/x
  3. Step 3: Cross multiply
    1,187,143.01x = 1,780,701.36 × 288,585.60
  4. Step 4: Simplify right side
    1,187,143.01x = 513,884,770,396.42
  5. Step 5: Solve for x
    x = 513,884,770,396.42/1,187,143.01
  6. Step 6: Final answer
    x = 432,875.20

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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.