Home / 1,780,258.35-2,670,387.56-432,411.87

Finding the Fourth Proportional to 1,780,258.35, 2,670,387.56 and 432,411.87

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Solution

The fourth proportional to 1,780,258.35, 2,670,387.56 and 432,411.87 is: 648,617.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,258.35 : 2,670,387.56 = 432,411.87 : x
  2. Step 2: Convert to fraction form
    1,780,258.35/2,670,387.56 = 432,411.87/x
  3. Step 3: Cross multiply
    1,780,258.35x = 2,670,387.56 × 432,411.87
  4. Step 4: Simplify right side
    1,780,258.35x = 1,154,707,287,917.78
  5. Step 5: Solve for x
    x = 1,154,707,287,917.78/1,780,258.35
  6. Step 6: Final answer
    x = 648,617.82

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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.