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Finding the Fourth Proportional to 702,785.60, 969,844.56 and 380,498.48

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Solution

The fourth proportional to 702,785.60, 969,844.56 and 380,498.48 is: 525,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,785.60 : 969,844.56 = 380,498.48 : x
  2. Step 2: Convert to fraction form
    702,785.60/969,844.56 = 380,498.48/x
  3. Step 3: Cross multiply
    702,785.60x = 969,844.56 × 380,498.48
  4. Step 4: Simplify right side
    702,785.60x = 369,024,380,916.27
  5. Step 5: Solve for x
    x = 369,024,380,916.27/702,785.60
  6. Step 6: Final answer
    x = 525,088.14

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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.