Home / 713,824.02-985,104.73-391,547.70

Finding the Fourth Proportional to 713,824.02, 985,104.73 and 391,547.70

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Solution

The fourth proportional to 713,824.02, 985,104.73 and 391,547.70 is: 540,350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,824.02 : 985,104.73 = 391,547.70 : x
  2. Step 2: Convert to fraction form
    713,824.02/985,104.73 = 391,547.70/x
  3. Step 3: Cross multiply
    713,824.02x = 985,104.73 × 391,547.70
  4. Step 4: Simplify right side
    713,824.02x = 385,715,491,290.62
  5. Step 5: Solve for x
    x = 385,715,491,290.62/713,824.02
  6. Step 6: Final answer
    x = 540,350.96

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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.