Home / 989,031.25-1,364,863.13-536,322.61

Finding the Fourth Proportional to 989,031.25, 1,364,863.13 and 536,322.61

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Solution

The fourth proportional to 989,031.25, 1,364,863.13 and 536,322.61 is: 740,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,031.25 : 1,364,863.13 = 536,322.61 : x
  2. Step 2: Convert to fraction form
    989,031.25/1,364,863.13 = 536,322.61/x
  3. Step 3: Cross multiply
    989,031.25x = 1,364,863.13 × 536,322.61
  4. Step 4: Simplify right side
    989,031.25x = 732,006,956,174.37
  5. Step 5: Solve for x
    x = 732,006,956,174.37/989,031.25
  6. Step 6: Final answer
    x = 740,125.20

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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.