Home / 893,138.10-1,342,364.52-420,155.61

Finding the Fourth Proportional to 893,138.10, 1,342,364.52 and 420,155.61

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Solution

The fourth proportional to 893,138.10, 1,342,364.52 and 420,155.61 is: 631,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,138.10 : 1,342,364.52 = 420,155.61 : x
  2. Step 2: Convert to fraction form
    893,138.10/1,342,364.52 = 420,155.61/x
  3. Step 3: Cross multiply
    893,138.10x = 1,342,364.52 × 420,155.61
  4. Step 4: Simplify right side
    893,138.10x = 564,001,983,742.96
  5. Step 5: Solve for x
    x = 564,001,983,742.96/893,138.10
  6. Step 6: Final answer
    x = 631,483.51

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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.