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Finding the Fourth Proportional to 1,255,869.71, 1,733,047.49 and 712,042.09

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Solution

The fourth proportional to 1,255,869.71, 1,733,047.49 and 712,042.09 is: 982,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,869.71 : 1,733,047.49 = 712,042.09 : x
  2. Step 2: Convert to fraction form
    1,255,869.71/1,733,047.49 = 712,042.09/x
  3. Step 3: Cross multiply
    1,255,869.71x = 1,733,047.49 × 712,042.09
  4. Step 4: Simplify right side
    1,255,869.71x = 1,234,002,759,038.15
  5. Step 5: Solve for x
    x = 1,234,002,759,038.15/1,255,869.71
  6. Step 6: Final answer
    x = 982,588.20

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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.