Home / 926,721.16-1,390,196.22-327,558.76

Finding the Fourth Proportional to 926,721.16, 1,390,196.22 and 327,558.76

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Solution

The fourth proportional to 926,721.16, 1,390,196.22 and 327,558.76 is: 491,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,721.16 : 1,390,196.22 = 327,558.76 : x
  2. Step 2: Convert to fraction form
    926,721.16/1,390,196.22 = 327,558.76/x
  3. Step 3: Cross multiply
    926,721.16x = 1,390,196.22 × 327,558.76
  4. Step 4: Simplify right side
    926,721.16x = 455,370,949,979.89
  5. Step 5: Solve for x
    x = 455,370,949,979.89/926,721.16
  6. Step 6: Final answer
    x = 491,378.60

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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.