Home / 748,918.80-1,121,995.80-699,152.40

Finding the Fourth Proportional to 748,918.80, 1,121,995.80 and 699,152.40

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Solution

The fourth proportional to 748,918.80, 1,121,995.80 and 699,152.40 is: 1,047,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,918.80 : 1,121,995.80 = 699,152.40 : x
  2. Step 2: Convert to fraction form
    748,918.80/1,121,995.80 = 699,152.40/x
  3. Step 3: Cross multiply
    748,918.80x = 1,121,995.80 × 699,152.40
  4. Step 4: Simplify right side
    748,918.80x = 784,446,056,359.92
  5. Step 5: Solve for x
    x = 784,446,056,359.92/748,918.80
  6. Step 6: Final answer
    x = 1,047,438.06

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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.