Home / 423,134.04-634,677.50-309,398.36

Finding the Fourth Proportional to 423,134.04, 634,677.50 and 309,398.36

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Solution

The fourth proportional to 423,134.04, 634,677.50 and 309,398.36 is: 464,080.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,134.04 : 634,677.50 = 309,398.36 : x
  2. Step 2: Convert to fraction form
    423,134.04/634,677.50 = 309,398.36/x
  3. Step 3: Cross multiply
    423,134.04x = 634,677.50 × 309,398.36
  4. Step 4: Simplify right side
    423,134.04x = 196,368,177,628.90
  5. Step 5: Solve for x
    x = 196,368,177,628.90/423,134.04
  6. Step 6: Final answer
    x = 464,080.31

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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.