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Finding the Fourth Proportional to 519,502.95, 716,911.02 and 290,046.96

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Solution

The fourth proportional to 519,502.95, 716,911.02 and 290,046.96 is: 400,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,502.95 : 716,911.02 = 290,046.96 : x
  2. Step 2: Convert to fraction form
    519,502.95/716,911.02 = 290,046.96/x
  3. Step 3: Cross multiply
    519,502.95x = 716,911.02 × 290,046.96
  4. Step 4: Simplify right side
    519,502.95x = 207,937,861,941.50
  5. Step 5: Solve for x
    x = 207,937,861,941.50/519,502.95
  6. Step 6: Final answer
    x = 400,263.10

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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.