Home / 864,393.30-1,296,543.08-265,354.56

Finding the Fourth Proportional to 864,393.30, 1,296,543.08 and 265,354.56

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Solution

The fourth proportional to 864,393.30, 1,296,543.08 and 265,354.56 is: 398,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,393.30 : 1,296,543.08 = 265,354.56 : x
  2. Step 2: Convert to fraction form
    864,393.30/1,296,543.08 = 265,354.56/x
  3. Step 3: Cross multiply
    864,393.30x = 1,296,543.08 × 265,354.56
  4. Step 4: Simplify right side
    864,393.30x = 344,043,618,514.45
  5. Step 5: Solve for x
    x = 344,043,618,514.45/864,393.30
  6. Step 6: Final answer
    x = 398,017.45

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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.