Home / 689,775.28-1,034,818.65-210,046

Finding the Fourth Proportional to 689,775.28, 1,034,818.65 and 210,046

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Solution

The fourth proportional to 689,775.28, 1,034,818.65 and 210,046 is: 315,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,775.28 : 1,034,818.65 = 210,046 : x
  2. Step 2: Convert to fraction form
    689,775.28/1,034,818.65 = 210,046/x
  3. Step 3: Cross multiply
    689,775.28x = 1,034,818.65 × 210,046
  4. Step 4: Simplify right side
    689,775.28x = 217,359,518,157.90
  5. Step 5: Solve for x
    x = 217,359,518,157.90/689,775.28
  6. Step 6: Final answer
    x = 315,116.42

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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.