Home / 1,587,476.23-2,186,711.44-1,280,693.61

Finding the Fourth Proportional to 1,587,476.23, 2,186,711.44 and 1,280,693.61

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Solution

The fourth proportional to 1,587,476.23, 2,186,711.44 and 1,280,693.61 is: 1,764,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,476.23 : 2,186,711.44 = 1,280,693.61 : x
  2. Step 2: Convert to fraction form
    1,587,476.23/2,186,711.44 = 1,280,693.61/x
  3. Step 3: Cross multiply
    1,587,476.23x = 2,186,711.44 × 1,280,693.61
  4. Step 4: Simplify right side
    1,587,476.23x = 2,800,507,364,920.16
  5. Step 5: Solve for x
    x = 2,800,507,364,920.16/1,587,476.23
  6. Step 6: Final answer
    x = 1,764,125.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.