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Finding the Fourth Proportional to 449,498.74, 620,306.37 and 248,294.74

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Solution

The fourth proportional to 449,498.74, 620,306.37 and 248,294.74 is: 342,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,498.74 : 620,306.37 = 248,294.74 : x
  2. Step 2: Convert to fraction form
    449,498.74/620,306.37 = 248,294.74/x
  3. Step 3: Cross multiply
    449,498.74x = 620,306.37 × 248,294.74
  4. Step 4: Simplify right side
    449,498.74x = 154,018,808,859.49
  5. Step 5: Solve for x
    x = 154,018,808,859.49/449,498.74
  6. Step 6: Final answer
    x = 342,645.70

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1.5x scale

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.