Home / 1,240,476.60-1,712,042.80-757,321.86

Finding the Fourth Proportional to 1,240,476.60, 1,712,042.80 and 757,321.86

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Solution

The fourth proportional to 1,240,476.60, 1,712,042.80 and 757,321.86 is: 1,045,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,476.60 : 1,712,042.80 = 757,321.86 : x
  2. Step 2: Convert to fraction form
    1,240,476.60/1,712,042.80 = 757,321.86/x
  3. Step 3: Cross multiply
    1,240,476.60x = 1,712,042.80 × 757,321.86
  4. Step 4: Simplify right side
    1,240,476.60x = 1,296,567,437,695.61
  5. Step 5: Solve for x
    x = 1,296,567,437,695.61/1,240,476.60
  6. Step 6: Final answer
    x = 1,045,217.17

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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.