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Finding the Fourth Proportional to 632,037.32, 872,211.80 and 345,559.76

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Solution

The fourth proportional to 632,037.32, 872,211.80 and 345,559.76 is: 476,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,037.32 : 872,211.80 = 345,559.76 : x
  2. Step 2: Convert to fraction form
    632,037.32/872,211.80 = 345,559.76/x
  3. Step 3: Cross multiply
    632,037.32x = 872,211.80 × 345,559.76
  4. Step 4: Simplify right side
    632,037.32x = 301,401,300,277.17
  5. Step 5: Solve for x
    x = 301,401,300,277.17/632,037.32
  6. Step 6: Final answer
    x = 476,872.63

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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.