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Finding the Fourth Proportional to 526,657.40, 788,649.60 and 289,732.40

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Solution

The fourth proportional to 526,657.40, 788,649.60 and 289,732.40 is: 433,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,657.40 : 788,649.60 = 289,732.40 : x
  2. Step 2: Convert to fraction form
    526,657.40/788,649.60 = 289,732.40/x
  3. Step 3: Cross multiply
    526,657.40x = 788,649.60 × 289,732.40
  4. Step 4: Simplify right side
    526,657.40x = 228,497,341,367.04
  5. Step 5: Solve for x
    x = 228,497,341,367.04/526,657.40
  6. Step 6: Final answer
    x = 433,863.35

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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.