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Finding the Fourth Proportional to 525,718.08, 725,490.20 and 299,363.56

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Solution

The fourth proportional to 525,718.08, 725,490.20 and 299,363.56 is: 413,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,718.08 : 725,490.20 = 299,363.56 : x
  2. Step 2: Convert to fraction form
    525,718.08/725,490.20 = 299,363.56/x
  3. Step 3: Cross multiply
    525,718.08x = 725,490.20 × 299,363.56
  4. Step 4: Simplify right side
    525,718.08x = 217,185,329,017.11
  5. Step 5: Solve for x
    x = 217,185,329,017.11/525,718.08
  6. Step 6: Final answer
    x = 413,121.29

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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.