Home / 727,385.35-1,003,818.86-400,711.63

Finding the Fourth Proportional to 727,385.35, 1,003,818.86 and 400,711.63

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Solution

The fourth proportional to 727,385.35, 1,003,818.86 and 400,711.63 is: 552,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,385.35 : 1,003,818.86 = 400,711.63 : x
  2. Step 2: Convert to fraction form
    727,385.35/1,003,818.86 = 400,711.63/x
  3. Step 3: Cross multiply
    727,385.35x = 1,003,818.86 × 400,711.63
  4. Step 4: Simplify right side
    727,385.35x = 402,241,891,615.34
  5. Step 5: Solve for x
    x = 402,241,891,615.34/727,385.35
  6. Step 6: Final answer
    x = 552,996.97

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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.