Home / 989,031-1,364,862.78-536,322.36

Finding the Fourth Proportional to 989,031, 1,364,862.78 and 536,322.36

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Solution

The fourth proportional to 989,031, 1,364,862.78 and 536,322.36 is: 740,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,031 : 1,364,862.78 = 536,322.36 : x
  2. Step 2: Convert to fraction form
    989,031/1,364,862.78 = 536,322.36/x
  3. Step 3: Cross multiply
    989,031x = 1,364,862.78 × 536,322.36
  4. Step 4: Simplify right side
    989,031x = 732,006,427,245.76
  5. Step 5: Solve for x
    x = 732,006,427,245.76/989,031
  6. Step 6: Final answer
    x = 740,124.86

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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.