Home / 853,492.26-1,177,853.19-490,915.74

Finding the Fourth Proportional to 853,492.26, 1,177,853.19 and 490,915.74

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Solution

The fourth proportional to 853,492.26, 1,177,853.19 and 490,915.74 is: 677,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,492.26 : 1,177,853.19 = 490,915.74 : x
  2. Step 2: Convert to fraction form
    853,492.26/1,177,853.19 = 490,915.74/x
  3. Step 3: Cross multiply
    853,492.26x = 1,177,853.19 × 490,915.74
  4. Step 4: Simplify right side
    853,492.26x = 578,226,670,380.21
  5. Step 5: Solve for x
    x = 578,226,670,380.21/853,492.26
  6. Step 6: Final answer
    x = 677,483.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.