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Finding the Fourth Proportional to 650,490.19, 897,506.20 and 374,780.57

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Solution

The fourth proportional to 650,490.19, 897,506.20 and 374,780.57 is: 517,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,490.19 : 897,506.20 = 374,780.57 : x
  2. Step 2: Convert to fraction form
    650,490.19/897,506.20 = 374,780.57/x
  3. Step 3: Cross multiply
    650,490.19x = 897,506.20 × 374,780.57
  4. Step 4: Simplify right side
    650,490.19x = 336,367,879,790.05
  5. Step 5: Solve for x
    x = 336,367,879,790.05/650,490.19
  6. Step 6: Final answer
    x = 517,099.08

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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.