Home / 400,092.47-552,328.37-309,243.12

Finding the Fourth Proportional to 400,092.47, 552,328.37 and 309,243.12

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Solution

The fourth proportional to 400,092.47, 552,328.37 and 309,243.12 is: 426,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,092.47 : 552,328.37 = 309,243.12 : x
  2. Step 2: Convert to fraction form
    400,092.47/552,328.37 = 309,243.12/x
  3. Step 3: Cross multiply
    400,092.47x = 552,328.37 × 309,243.12
  4. Step 4: Simplify right side
    400,092.47x = 170,803,746,857.10
  5. Step 5: Solve for x
    x = 170,803,746,857.10/400,092.47
  6. Step 6: Final answer
    x = 426,910.68

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1.5x scale

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.