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Finding the Fourth Proportional to 649,910.80, 896,870.76 and 363,427.60

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Solution

The fourth proportional to 649,910.80, 896,870.76 and 363,427.60 is: 501,526.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,910.80 : 896,870.76 = 363,427.60 : x
  2. Step 2: Convert to fraction form
    649,910.80/896,870.76 = 363,427.60/x
  3. Step 3: Cross multiply
    649,910.80x = 896,870.76 × 363,427.60
  4. Step 4: Simplify right side
    649,910.80x = 325,947,587,816.98
  5. Step 5: Solve for x
    x = 325,947,587,816.98/649,910.80
  6. Step 6: Final answer
    x = 501,526.65

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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.