Home / 1,265,685.40-1,746,435.90-721,860.72

Finding the Fourth Proportional to 1,265,685.40, 1,746,435.90 and 721,860.72

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Solution

The fourth proportional to 1,265,685.40, 1,746,435.90 and 721,860.72 is: 996,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,685.40 : 1,746,435.90 = 721,860.72 : x
  2. Step 2: Convert to fraction form
    1,265,685.40/1,746,435.90 = 721,860.72/x
  3. Step 3: Cross multiply
    1,265,685.40x = 1,746,435.90 × 721,860.72
  4. Step 4: Simplify right side
    1,265,685.40x = 1,260,683,476,207.85
  5. Step 5: Solve for x
    x = 1,260,683,476,207.85/1,265,685.40
  6. Step 6: Final answer
    x = 996,048.05

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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.