Home / 817,121.22-1,227,683.60-771,801.18

Finding the Fourth Proportional to 817,121.22, 1,227,683.60 and 771,801.18

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Solution

The fourth proportional to 817,121.22, 1,227,683.60 and 771,801.18 is: 1,159,592.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,121.22 : 1,227,683.60 = 771,801.18 : x
  2. Step 2: Convert to fraction form
    817,121.22/1,227,683.60 = 771,801.18/x
  3. Step 3: Cross multiply
    817,121.22x = 1,227,683.60 × 771,801.18
  4. Step 4: Simplify right side
    817,121.22x = 947,527,651,146.65
  5. Step 5: Solve for x
    x = 947,527,651,146.65/817,121.22
  6. Step 6: Final answer
    x = 1,159,592.52

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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.