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Finding the Fourth Proportional to 891,509.90, 1,334,902.84 and 469,900.04

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Solution

The fourth proportional to 891,509.90, 1,334,902.84 and 469,900.04 is: 703,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,509.90 : 1,334,902.84 = 469,900.04 : x
  2. Step 2: Convert to fraction form
    891,509.90/1,334,902.84 = 469,900.04/x
  3. Step 3: Cross multiply
    891,509.90x = 1,334,902.84 × 469,900.04
  4. Step 4: Simplify right side
    891,509.90x = 627,270,897,912.11
  5. Step 5: Solve for x
    x = 627,270,897,912.11/891,509.90
  6. Step 6: Final answer
    x = 703,605.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.