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Finding the Fourth Proportional to 554,344.74, 764,995.80 and 299,695.86

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Solution

The fourth proportional to 554,344.74, 764,995.80 and 299,695.86 is: 413,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,344.74 : 764,995.80 = 299,695.86 : x
  2. Step 2: Convert to fraction form
    554,344.74/764,995.80 = 299,695.86/x
  3. Step 3: Cross multiply
    554,344.74x = 764,995.80 × 299,695.86
  4. Step 4: Simplify right side
    554,344.74x = 229,266,074,177.39
  5. Step 5: Solve for x
    x = 229,266,074,177.39/554,344.74
  6. Step 6: Final answer
    x = 413,580.32

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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.