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Finding the Fourth Proportional to 348,566.20, 522,071.70 and 286,358.20

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Solution

The fourth proportional to 348,566.20, 522,071.70 and 286,358.20 is: 428,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,566.20 : 522,071.70 = 286,358.20 : x
  2. Step 2: Convert to fraction form
    348,566.20/522,071.70 = 286,358.20/x
  3. Step 3: Cross multiply
    348,566.20x = 522,071.70 × 286,358.20
  4. Step 4: Simplify right side
    348,566.20x = 149,499,512,282.94
  5. Step 5: Solve for x
    x = 149,499,512,282.94/348,566.20
  6. Step 6: Final answer
    x = 428,898.48

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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.