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Finding the Fourth Proportional to 873,818.40, 1,310,727.60 and 341,356.80

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Solution

The fourth proportional to 873,818.40, 1,310,727.60 and 341,356.80 is: 512,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,818.40 : 1,310,727.60 = 341,356.80 : x
  2. Step 2: Convert to fraction form
    873,818.40/1,310,727.60 = 341,356.80/x
  3. Step 3: Cross multiply
    873,818.40x = 1,310,727.60 × 341,356.80
  4. Step 4: Simplify right side
    873,818.40x = 447,425,779,207.68
  5. Step 5: Solve for x
    x = 447,425,779,207.68/873,818.40
  6. Step 6: Final answer
    x = 512,035.20

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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.