Home / 770,339.97-1,155,912.89-315,269.01

Finding the Fourth Proportional to 770,339.97, 1,155,912.89 and 315,269.01

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Solution

The fourth proportional to 770,339.97, 1,155,912.89 and 315,269.01 is: 473,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,339.97 : 1,155,912.89 = 315,269.01 : x
  2. Step 2: Convert to fraction form
    770,339.97/1,155,912.89 = 315,269.01/x
  3. Step 3: Cross multiply
    770,339.97x = 1,155,912.89 × 315,269.01
  4. Step 4: Simplify right side
    770,339.97x = 364,423,512,476.54
  5. Step 5: Solve for x
    x = 364,423,512,476.54/770,339.97
  6. Step 6: Final answer
    x = 473,068.42

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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.