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Finding the Fourth Proportional to 517,337.12, 713,922 and 290,984.96

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Solution

The fourth proportional to 517,337.12, 713,922 and 290,984.96 is: 401,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,337.12 : 713,922 = 290,984.96 : x
  2. Step 2: Convert to fraction form
    517,337.12/713,922 = 290,984.96/x
  3. Step 3: Cross multiply
    517,337.12x = 713,922 × 290,984.96
  4. Step 4: Simplify right side
    517,337.12x = 207,740,564,613.12
  5. Step 5: Solve for x
    x = 207,740,564,613.12/517,337.12
  6. Step 6: Final answer
    x = 401,557.43

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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.