Home / 1,180,287.40-1,771,305.90-865,359.40

Finding the Fourth Proportional to 1,180,287.40, 1,771,305.90 and 865,359.40

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Solution

The fourth proportional to 1,180,287.40, 1,771,305.90 and 865,359.40 is: 1,298,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,287.40 : 1,771,305.90 = 865,359.40 : x
  2. Step 2: Convert to fraction form
    1,180,287.40/1,771,305.90 = 865,359.40/x
  3. Step 3: Cross multiply
    1,180,287.40x = 1,771,305.90 × 865,359.40
  4. Step 4: Simplify right side
    1,180,287.40x = 1,532,816,210,840.46
  5. Step 5: Solve for x
    x = 1,532,816,210,840.46/1,180,287.40
  6. Step 6: Final answer
    x = 1,298,680.48

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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.