Home / 460,514.78-690,772.20-140,653.73

Finding the Fourth Proportional to 460,514.78, 690,772.20 and 140,653.73

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Solution

The fourth proportional to 460,514.78, 690,772.20 and 140,653.73 is: 210,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,514.78 : 690,772.20 = 140,653.73 : x
  2. Step 2: Convert to fraction form
    460,514.78/690,772.20 = 140,653.73/x
  3. Step 3: Cross multiply
    460,514.78x = 690,772.20 × 140,653.73
  4. Step 4: Simplify right side
    460,514.78x = 97,159,683,056.45
  5. Step 5: Solve for x
    x = 97,159,683,056.45/460,514.78
  6. Step 6: Final answer
    x = 210,980.60

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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.