Home / 1,108,217.92-1,528,980.64-678,049.60

Finding the Fourth Proportional to 1,108,217.92, 1,528,980.64 and 678,049.60

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Solution

The fourth proportional to 1,108,217.92, 1,528,980.64 and 678,049.60 is: 935,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,217.92 : 1,528,980.64 = 678,049.60 : x
  2. Step 2: Convert to fraction form
    1,108,217.92/1,528,980.64 = 678,049.60/x
  3. Step 3: Cross multiply
    1,108,217.92x = 1,528,980.64 × 678,049.60
  4. Step 4: Simplify right side
    1,108,217.92x = 1,036,724,711,359.74
  5. Step 5: Solve for x
    x = 1,036,724,711,359.74/1,108,217.92
  6. Step 6: Final answer
    x = 935,488.13

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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.