Home / 516,016.20-772,274.70-453,030.60

Finding the Fourth Proportional to 516,016.20, 772,274.70 and 453,030.60

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Solution

The fourth proportional to 516,016.20, 772,274.70 and 453,030.60 is: 678,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,016.20 : 772,274.70 = 453,030.60 : x
  2. Step 2: Convert to fraction form
    516,016.20/772,274.70 = 453,030.60/x
  3. Step 3: Cross multiply
    516,016.20x = 772,274.70 × 453,030.60
  4. Step 4: Simplify right side
    516,016.20x = 349,864,070,705.82
  5. Step 5: Solve for x
    x = 349,864,070,705.82/516,016.20
  6. Step 6: Final answer
    x = 678,009.86

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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.