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Finding the Fourth Proportional to 708,266.66, 977,408.15 and 385,976.84

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Solution

The fourth proportional to 708,266.66, 977,408.15 and 385,976.84 is: 532,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,266.66 : 977,408.15 = 385,976.84 : x
  2. Step 2: Convert to fraction form
    708,266.66/977,408.15 = 385,976.84/x
  3. Step 3: Cross multiply
    708,266.66x = 977,408.15 × 385,976.84
  4. Step 4: Simplify right side
    708,266.66x = 377,256,902,310.32
  5. Step 5: Solve for x
    x = 377,256,902,310.32/708,266.66
  6. Step 6: Final answer
    x = 532,648.12

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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.