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Finding the Fourth Proportional to 902,521, 1,245,492.80 and 494,619.52

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Solution

The fourth proportional to 902,521, 1,245,492.80 and 494,619.52 is: 682,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,521 : 1,245,492.80 = 494,619.52 : x
  2. Step 2: Convert to fraction form
    902,521/1,245,492.80 = 494,619.52/x
  3. Step 3: Cross multiply
    902,521x = 1,245,492.80 × 494,619.52
  4. Step 4: Simplify right side
    902,521x = 616,045,050,899.46
  5. Step 5: Solve for x
    x = 616,045,050,899.46/902,521
  6. Step 6: Final answer
    x = 682,582.51

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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.