Home / 740,979.20-1,022,552.31-401,447.45

Finding the Fourth Proportional to 740,979.20, 1,022,552.31 and 401,447.45

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Solution

The fourth proportional to 740,979.20, 1,022,552.31 and 401,447.45 is: 553,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,979.20 : 1,022,552.31 = 401,447.45 : x
  2. Step 2: Convert to fraction form
    740,979.20/1,022,552.31 = 401,447.45/x
  3. Step 3: Cross multiply
    740,979.20x = 1,022,552.31 × 401,447.45
  4. Step 4: Simplify right side
    740,979.20x = 410,501,017,341.11
  5. Step 5: Solve for x
    x = 410,501,017,341.11/740,979.20
  6. Step 6: Final answer
    x = 553,998.03

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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.