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Finding the Fourth Proportional to 720,474.42, 994,113.40 and 434,010.22

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Solution

The fourth proportional to 720,474.42, 994,113.40 and 434,010.22 is: 598,848.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,474.42 : 994,113.40 = 434,010.22 : x
  2. Step 2: Convert to fraction form
    720,474.42/994,113.40 = 434,010.22/x
  3. Step 3: Cross multiply
    720,474.42x = 994,113.40 × 434,010.22
  4. Step 4: Simplify right side
    720,474.42x = 431,455,375,438.95
  5. Step 5: Solve for x
    x = 431,455,375,438.95/720,474.42
  6. Step 6: Final answer
    x = 598,848.99

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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.