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Finding the Fourth Proportional to 516,990.06, 713,510.37 and 290,635.56

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Solution

The fourth proportional to 516,990.06, 713,510.37 and 290,635.56 is: 401,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,990.06 : 713,510.37 = 290,635.56 : x
  2. Step 2: Convert to fraction form
    516,990.06/713,510.37 = 290,635.56/x
  3. Step 3: Cross multiply
    516,990.06x = 713,510.37 × 290,635.56
  4. Step 4: Simplify right side
    516,990.06x = 207,371,485,950.76
  5. Step 5: Solve for x
    x = 207,371,485,950.76/516,990.06
  6. Step 6: Final answer
    x = 401,113.10

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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.