Home / 551,112.23-760,482.38-309,339.38

Finding the Fourth Proportional to 551,112.23, 760,482.38 and 309,339.38

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Solution

The fourth proportional to 551,112.23, 760,482.38 and 309,339.38 is: 426,858.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,112.23 : 760,482.38 = 309,339.38 : x
  2. Step 2: Convert to fraction form
    551,112.23/760,482.38 = 309,339.38/x
  3. Step 3: Cross multiply
    551,112.23x = 760,482.38 × 309,339.38
  4. Step 4: Simplify right side
    551,112.23x = 235,247,142,581.02
  5. Step 5: Solve for x
    x = 235,247,142,581.02/551,112.23
  6. Step 6: Final answer
    x = 426,858.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.