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Finding the Fourth Proportional to 519,215.14, 716,517.93 and 280,751.14

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Solution

The fourth proportional to 519,215.14, 716,517.93 and 280,751.14 is: 387,437.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,215.14 : 716,517.93 = 280,751.14 : x
  2. Step 2: Convert to fraction form
    519,215.14/716,517.93 = 280,751.14/x
  3. Step 3: Cross multiply
    519,215.14x = 716,517.93 × 280,751.14
  4. Step 4: Simplify right side
    519,215.14x = 201,163,225,677.94
  5. Step 5: Solve for x
    x = 201,163,225,677.94/519,215.14
  6. Step 6: Final answer
    x = 387,437.13

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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.