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Finding the Fourth Proportional to 517,321.96, 713,966.45 and 313,366.89

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Solution

The fourth proportional to 517,321.96, 713,966.45 and 313,366.89 is: 432,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,321.96 : 713,966.45 = 313,366.89 : x
  2. Step 2: Convert to fraction form
    517,321.96/713,966.45 = 313,366.89/x
  3. Step 3: Cross multiply
    517,321.96x = 713,966.45 × 313,366.89
  4. Step 4: Simplify right side
    517,321.96x = 223,733,446,000.84
  5. Step 5: Solve for x
    x = 223,733,446,000.84/517,321.96
  6. Step 6: Final answer
    x = 432,483.95

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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.