Home / 770,751.30-1,155,349.35-350,328.90

Finding the Fourth Proportional to 770,751.30, 1,155,349.35 and 350,328.90

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Solution

The fourth proportional to 770,751.30, 1,155,349.35 and 350,328.90 is: 525,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,751.30 : 1,155,349.35 = 350,328.90 : x
  2. Step 2: Convert to fraction form
    770,751.30/1,155,349.35 = 350,328.90/x
  3. Step 3: Cross multiply
    770,751.30x = 1,155,349.35 × 350,328.90
  4. Step 4: Simplify right side
    770,751.30x = 404,752,266,901.22
  5. Step 5: Solve for x
    x = 404,752,266,901.22/770,751.30
  6. Step 6: Final answer
    x = 525,139.91

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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.