Home / 513,736.20-708,938.53-284,303.17

Finding the Fourth Proportional to 513,736.20, 708,938.53 and 284,303.17

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Solution

The fourth proportional to 513,736.20, 708,938.53 and 284,303.17 is: 392,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,736.20 : 708,938.53 = 284,303.17 : x
  2. Step 2: Convert to fraction form
    513,736.20/708,938.53 = 284,303.17/x
  3. Step 3: Cross multiply
    513,736.20x = 708,938.53 × 284,303.17
  4. Step 4: Simplify right side
    513,736.20x = 201,553,467,601.78
  5. Step 5: Solve for x
    x = 201,553,467,601.78/513,736.20
  6. Step 6: Final answer
    x = 392,328.73

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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.