Home / 529,191.12-730,288.80-287,475.51

Finding the Fourth Proportional to 529,191.12, 730,288.80 and 287,475.51

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Solution

The fourth proportional to 529,191.12, 730,288.80 and 287,475.51 is: 396,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,191.12 : 730,288.80 = 287,475.51 : x
  2. Step 2: Convert to fraction form
    529,191.12/730,288.80 = 287,475.51/x
  3. Step 3: Cross multiply
    529,191.12x = 730,288.80 × 287,475.51
  4. Step 4: Simplify right side
    529,191.12x = 209,940,145,227.29
  5. Step 5: Solve for x
    x = 209,940,145,227.29/529,191.12
  6. Step 6: Final answer
    x = 396,718.95

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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.