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Finding the Fourth Proportional to 516,707, 713,122.48 and 290,352.52

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Solution

The fourth proportional to 516,707, 713,122.48 and 290,352.52 is: 400,724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,707 : 713,122.48 = 290,352.52 : x
  2. Step 2: Convert to fraction form
    516,707/713,122.48 = 290,352.52/x
  3. Step 3: Cross multiply
    516,707x = 713,122.48 × 290,352.52
  4. Step 4: Simplify right side
    516,707x = 207,056,909,136.65
  5. Step 5: Solve for x
    x = 207,056,909,136.65/516,707
  6. Step 6: Final answer
    x = 400,724.03

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1.5x scale

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.