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Finding the Fourth Proportional to 526,279.40, 788,511.90 and 245,220.20

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Solution

The fourth proportional to 526,279.40, 788,511.90 and 245,220.20 is: 367,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,279.40 : 788,511.90 = 245,220.20 : x
  2. Step 2: Convert to fraction form
    526,279.40/788,511.90 = 245,220.20/x
  3. Step 3: Cross multiply
    526,279.40x = 788,511.90 × 245,220.20
  4. Step 4: Simplify right side
    526,279.40x = 193,359,045,820.38
  5. Step 5: Solve for x
    x = 193,359,045,820.38/526,279.40
  6. Step 6: Final answer
    x = 367,407.59

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1.5x scale

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.