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Finding the Fourth Proportional to 607,621.08, 838,491.56 and 349,478.54

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Solution

The fourth proportional to 607,621.08, 838,491.56 and 349,478.54 is: 482,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,621.08 : 838,491.56 = 349,478.54 : x
  2. Step 2: Convert to fraction form
    607,621.08/838,491.56 = 349,478.54/x
  3. Step 3: Cross multiply
    607,621.08x = 838,491.56 × 349,478.54
  4. Step 4: Simplify right side
    607,621.08x = 293,034,806,191.12
  5. Step 5: Solve for x
    x = 293,034,806,191.12/607,621.08
  6. Step 6: Final answer
    x = 482,265.70

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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.