Home / 459,836.19-689,746.25-206,937.72

Finding the Fourth Proportional to 459,836.19, 689,746.25 and 206,937.72

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Solution

The fourth proportional to 459,836.19, 689,746.25 and 206,937.72 is: 310,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,836.19 : 689,746.25 = 206,937.72 : x
  2. Step 2: Convert to fraction form
    459,836.19/689,746.25 = 206,937.72/x
  3. Step 3: Cross multiply
    459,836.19x = 689,746.25 × 206,937.72
  4. Step 4: Simplify right side
    459,836.19x = 142,734,516,870.89
  5. Step 5: Solve for x
    x = 142,734,516,870.89/459,836.19
  6. Step 6: Final answer
    x = 310,402.97

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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.