Home / 1,215,336.31-1,676,637.18-731,621.18

Finding the Fourth Proportional to 1,215,336.31, 1,676,637.18 and 731,621.18

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Solution

The fourth proportional to 1,215,336.31, 1,676,637.18 and 731,621.18 is: 1,009,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,336.31 : 1,676,637.18 = 731,621.18 : x
  2. Step 2: Convert to fraction form
    1,215,336.31/1,676,637.18 = 731,621.18/x
  3. Step 3: Cross multiply
    1,215,336.31x = 1,676,637.18 × 731,621.18
  4. Step 4: Simplify right side
    1,215,336.31x = 1,226,663,276,255.07
  5. Step 5: Solve for x
    x = 1,226,663,276,255.07/1,215,336.31
  6. Step 6: Final answer
    x = 1,009,320.03

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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.