Home / 357,363.04-492,974.85-289,456.69

Finding the Fourth Proportional to 357,363.04, 492,974.85 and 289,456.69

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Solution

The fourth proportional to 357,363.04, 492,974.85 and 289,456.69 is: 399,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,363.04 : 492,974.85 = 289,456.69 : x
  2. Step 2: Convert to fraction form
    357,363.04/492,974.85 = 289,456.69/x
  3. Step 3: Cross multiply
    357,363.04x = 492,974.85 × 289,456.69
  4. Step 4: Simplify right side
    357,363.04x = 142,694,868,334.25
  5. Step 5: Solve for x
    x = 142,694,868,334.25/357,363.04
  6. Step 6: Final answer
    x = 399,299.46

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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.