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Finding the Fourth Proportional to 703,842.04, 971,073.66 and 397,888.84

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Solution

The fourth proportional to 703,842.04, 971,073.66 and 397,888.84 is: 548,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,842.04 : 971,073.66 = 397,888.84 : x
  2. Step 2: Convert to fraction form
    703,842.04/971,073.66 = 397,888.84/x
  3. Step 3: Cross multiply
    703,842.04x = 971,073.66 × 397,888.84
  4. Step 4: Simplify right side
    703,842.04x = 386,379,372,131.95
  5. Step 5: Solve for x
    x = 386,379,372,131.95/703,842.04
  6. Step 6: Final answer
    x = 548,957.51

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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.