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Finding the Fourth Proportional to 843,788.64, 1,265,688 and 345,152.64

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Solution

The fourth proportional to 843,788.64, 1,265,688 and 345,152.64 is: 517,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,788.64 : 1,265,688 = 345,152.64 : x
  2. Step 2: Convert to fraction form
    843,788.64/1,265,688 = 345,152.64/x
  3. Step 3: Cross multiply
    843,788.64x = 1,265,688 × 345,152.64
  4. Step 4: Simplify right side
    843,788.64x = 436,855,554,616.32
  5. Step 5: Solve for x
    x = 436,855,554,616.32/843,788.64
  6. Step 6: Final answer
    x = 517,731.02

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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.