Home / 740,977.20-1,022,549.55-401,445.45

Finding the Fourth Proportional to 740,977.20, 1,022,549.55 and 401,445.45

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Solution

The fourth proportional to 740,977.20, 1,022,549.55 and 401,445.45 is: 553,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,977.20 : 1,022,549.55 = 401,445.45 : x
  2. Step 2: Convert to fraction form
    740,977.20/1,022,549.55 = 401,445.45/x
  3. Step 3: Cross multiply
    740,977.20x = 1,022,549.55 × 401,445.45
  4. Step 4: Simplify right side
    740,977.20x = 410,497,864,247.05
  5. Step 5: Solve for x
    x = 410,497,864,247.05/740,977.20
  6. Step 6: Final answer
    x = 553,995.27

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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.