Home / 692,136.70-1,038,010.65-218,967.10

Finding the Fourth Proportional to 692,136.70, 1,038,010.65 and 218,967.10

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Solution

The fourth proportional to 692,136.70, 1,038,010.65 and 218,967.10 is: 328,389.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,136.70 : 1,038,010.65 = 218,967.10 : x
  2. Step 2: Convert to fraction form
    692,136.70/1,038,010.65 = 218,967.10/x
  3. Step 3: Cross multiply
    692,136.70x = 1,038,010.65 × 218,967.10
  4. Step 4: Simplify right side
    692,136.70x = 227,290,181,799.62
  5. Step 5: Solve for x
    x = 227,290,181,799.62/692,136.70
  6. Step 6: Final answer
    x = 328,389.15

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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.