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Finding the Fourth Proportional to 631,483.32, 871,454.70 and 345,006.84

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Solution

The fourth proportional to 631,483.32, 871,454.70 and 345,006.84 is: 476,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,483.32 : 871,454.70 = 345,006.84 : x
  2. Step 2: Convert to fraction form
    631,483.32/871,454.70 = 345,006.84/x
  3. Step 3: Cross multiply
    631,483.32x = 871,454.70 × 345,006.84
  4. Step 4: Simplify right side
    631,483.32x = 300,657,832,250.15
  5. Step 5: Solve for x
    x = 300,657,832,250.15/631,483.32
  6. Step 6: Final answer
    x = 476,113.66

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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.