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Finding the Fourth Proportional to 708,132.96, 977,223.62 and 385,843.10

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Solution

The fourth proportional to 708,132.96, 977,223.62 and 385,843.10 is: 532,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,132.96 : 977,223.62 = 385,843.10 : x
  2. Step 2: Convert to fraction form
    708,132.96/977,223.62 = 385,843.10/x
  3. Step 3: Cross multiply
    708,132.96x = 977,223.62 × 385,843.10
  4. Step 4: Simplify right side
    708,132.96x = 377,054,990,934.02
  5. Step 5: Solve for x
    x = 377,054,990,934.02/708,132.96
  6. Step 6: Final answer
    x = 532,463.55

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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.