Home / 740,976.87-1,022,549.07-401,445.12

Finding the Fourth Proportional to 740,976.87, 1,022,549.07 and 401,445.12

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Solution

The fourth proportional to 740,976.87, 1,022,549.07 and 401,445.12 is: 553,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,976.87 : 1,022,549.07 = 401,445.12 : x
  2. Step 2: Convert to fraction form
    740,976.87/1,022,549.07 = 401,445.12/x
  3. Step 3: Cross multiply
    740,976.87x = 1,022,549.07 × 401,445.12
  4. Step 4: Simplify right side
    740,976.87x = 410,497,334,112.04
  5. Step 5: Solve for x
    x = 410,497,334,112.04/740,976.87
  6. Step 6: Final answer
    x = 553,994.80

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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.