Home / 1,152,139.80-1,728,209.70-797,554.20

Finding the Fourth Proportional to 1,152,139.80, 1,728,209.70 and 797,554.20

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Solution

The fourth proportional to 1,152,139.80, 1,728,209.70 and 797,554.20 is: 1,196,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,139.80 : 1,728,209.70 = 797,554.20 : x
  2. Step 2: Convert to fraction form
    1,152,139.80/1,728,209.70 = 797,554.20/x
  3. Step 3: Cross multiply
    1,152,139.80x = 1,728,209.70 × 797,554.20
  4. Step 4: Simplify right side
    1,152,139.80x = 1,378,340,904,715.74
  5. Step 5: Solve for x
    x = 1,378,340,904,715.74/1,152,139.80
  6. Step 6: Final answer
    x = 1,196,331.30

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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.