Home / 959,042.20-1,439,729.70-720,513.40

Finding the Fourth Proportional to 959,042.20, 1,439,729.70 and 720,513.40

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Solution

The fourth proportional to 959,042.20, 1,439,729.70 and 720,513.40 is: 1,081,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,042.20 : 1,439,729.70 = 720,513.40 : x
  2. Step 2: Convert to fraction form
    959,042.20/1,439,729.70 = 720,513.40/x
  3. Step 3: Cross multiply
    959,042.20x = 1,439,729.70 × 720,513.40
  4. Step 4: Simplify right side
    959,042.20x = 1,037,344,541,227.98
  5. Step 5: Solve for x
    x = 1,037,344,541,227.98/959,042.20
  6. Step 6: Final answer
    x = 1,081,646.40

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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.