Home / 715,637.66-1,072,656.50-310,361.91

Finding the Fourth Proportional to 715,637.66, 1,072,656.50 and 310,361.91

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Solution

The fourth proportional to 715,637.66, 1,072,656.50 and 310,361.91 is: 465,195.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,637.66 : 1,072,656.50 = 310,361.91 : x
  2. Step 2: Convert to fraction form
    715,637.66/1,072,656.50 = 310,361.91/x
  3. Step 3: Cross multiply
    715,637.66x = 1,072,656.50 × 310,361.91
  4. Step 4: Simplify right side
    715,637.66x = 332,911,718,562.11
  5. Step 5: Solve for x
    x = 332,911,718,562.11/715,637.66
  6. Step 6: Final answer
    x = 465,195.92

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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.