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Finding the Fourth Proportional to 579,302.88, 869,085.74 and 205,325.88

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Solution

The fourth proportional to 579,302.88, 869,085.74 and 205,325.88 is: 308,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,302.88 : 869,085.74 = 205,325.88 : x
  2. Step 2: Convert to fraction form
    579,302.88/869,085.74 = 205,325.88/x
  3. Step 3: Cross multiply
    579,302.88x = 869,085.74 × 205,325.88
  4. Step 4: Simplify right side
    579,302.88x = 178,445,794,360.95
  5. Step 5: Solve for x
    x = 178,445,794,360.95/579,302.88
  6. Step 6: Final answer
    x = 308,035.40

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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.