Home / 1,108,218.92-1,528,982.02-678,050.60

Finding the Fourth Proportional to 1,108,218.92, 1,528,982.02 and 678,050.60

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Solution

The fourth proportional to 1,108,218.92, 1,528,982.02 and 678,050.60 is: 935,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,218.92 : 1,528,982.02 = 678,050.60 : x
  2. Step 2: Convert to fraction form
    1,108,218.92/1,528,982.02 = 678,050.60/x
  3. Step 3: Cross multiply
    1,108,218.92x = 1,528,982.02 × 678,050.60
  4. Step 4: Simplify right side
    1,108,218.92x = 1,036,727,176,050.21
  5. Step 5: Solve for x
    x = 1,036,727,176,050.21/1,108,218.92
  6. Step 6: Final answer
    x = 935,489.51

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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.