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Finding the Fourth Proportional to 645,473.20, 968,404.20 and 346,097.20

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Solution

The fourth proportional to 645,473.20, 968,404.20 and 346,097.20 is: 519,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,473.20 : 968,404.20 = 346,097.20 : x
  2. Step 2: Convert to fraction form
    645,473.20/968,404.20 = 346,097.20/x
  3. Step 3: Cross multiply
    645,473.20x = 968,404.20 × 346,097.20
  4. Step 4: Simplify right side
    645,473.20x = 335,161,982,088.24
  5. Step 5: Solve for x
    x = 335,161,982,088.24/645,473.20
  6. Step 6: Final answer
    x = 519,250.04

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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.