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Finding the Fourth Proportional to 536,643.28, 740,519.52 and 294,923.20

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Solution

The fourth proportional to 536,643.28, 740,519.52 and 294,923.20 is: 406,967.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,643.28 : 740,519.52 = 294,923.20 : x
  2. Step 2: Convert to fraction form
    536,643.28/740,519.52 = 294,923.20/x
  3. Step 3: Cross multiply
    536,643.28x = 740,519.52 × 294,923.20
  4. Step 4: Simplify right side
    536,643.28x = 218,396,386,500.86
  5. Step 5: Solve for x
    x = 218,396,386,500.86/536,643.28
  6. Step 6: Final answer
    x = 406,967.52

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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.