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Finding the Fourth Proportional to 704,679.90, 972,453.33 and 382,381.80

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Solution

The fourth proportional to 704,679.90, 972,453.33 and 382,381.80 is: 527,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,679.90 : 972,453.33 = 382,381.80 : x
  2. Step 2: Convert to fraction form
    704,679.90/972,453.33 = 382,381.80/x
  3. Step 3: Cross multiply
    704,679.90x = 972,453.33 × 382,381.80
  4. Step 4: Simplify right side
    704,679.90x = 371,848,454,741.39
  5. Step 5: Solve for x
    x = 371,848,454,741.39/704,679.90
  6. Step 6: Final answer
    x = 527,684.21

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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.