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Finding the Fourth Proportional to 516,218.88, 774,439.14 and 216,526.74

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Solution

The fourth proportional to 516,218.88, 774,439.14 and 216,526.74 is: 324,836.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,218.88 : 774,439.14 = 216,526.74 : x
  2. Step 2: Convert to fraction form
    516,218.88/774,439.14 = 216,526.74/x
  3. Step 3: Cross multiply
    516,218.88x = 774,439.14 × 216,526.74
  4. Step 4: Simplify right side
    516,218.88x = 167,686,782,312.60
  5. Step 5: Solve for x
    x = 167,686,782,312.60/516,218.88
  6. Step 6: Final answer
    x = 324,836.59

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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.