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Finding the Fourth Proportional to 517,392.99, 713,952.83 and 381,500.30

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Solution

The fourth proportional to 517,392.99, 713,952.83 and 381,500.30 is: 526,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,392.99 : 713,952.83 = 381,500.30 : x
  2. Step 2: Convert to fraction form
    517,392.99/713,952.83 = 381,500.30/x
  3. Step 3: Cross multiply
    517,392.99x = 713,952.83 × 381,500.30
  4. Step 4: Simplify right side
    517,392.99x = 272,373,221,569.48
  5. Step 5: Solve for x
    x = 272,373,221,569.48/517,392.99
  6. Step 6: Final answer
    x = 526,433.92

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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.