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Finding the Fourth Proportional to 649,239, 973,551.96 and 379,444.50

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Solution

The fourth proportional to 649,239, 973,551.96 and 379,444.50 is: 568,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,239 : 973,551.96 = 379,444.50 : x
  2. Step 2: Convert to fraction form
    649,239/973,551.96 = 379,444.50/x
  3. Step 3: Cross multiply
    649,239x = 973,551.96 × 379,444.50
  4. Step 4: Simplify right side
    649,239x = 369,408,936,686.22
  5. Step 5: Solve for x
    x = 369,408,936,686.22/649,239
  6. Step 6: Final answer
    x = 568,987.59

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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.