Home / 718,031.40-1,077,047.10-219,330.60

Finding the Fourth Proportional to 718,031.40, 1,077,047.10 and 219,330.60

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Solution

The fourth proportional to 718,031.40, 1,077,047.10 and 219,330.60 is: 328,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,031.40 : 1,077,047.10 = 219,330.60 : x
  2. Step 2: Convert to fraction form
    718,031.40/1,077,047.10 = 219,330.60/x
  3. Step 3: Cross multiply
    718,031.40x = 1,077,047.10 × 219,330.60
  4. Step 4: Simplify right side
    718,031.40x = 236,229,386,671.26
  5. Step 5: Solve for x
    x = 236,229,386,671.26/718,031.40
  6. Step 6: Final answer
    x = 328,995.90

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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.