Home / 913,233.12-1,369,444.74-486,689.43

Finding the Fourth Proportional to 913,233.12, 1,369,444.74 and 486,689.43

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Solution

The fourth proportional to 913,233.12, 1,369,444.74 and 486,689.43 is: 729,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,233.12 : 1,369,444.74 = 486,689.43 : x
  2. Step 2: Convert to fraction form
    913,233.12/1,369,444.74 = 486,689.43/x
  3. Step 3: Cross multiply
    913,233.12x = 1,369,444.74 × 486,689.43
  4. Step 4: Simplify right side
    913,233.12x = 666,494,283,237.43
  5. Step 5: Solve for x
    x = 666,494,283,237.43/913,233.12
  6. Step 6: Final answer
    x = 729,818.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.