Home / 740,467.12-1,021,845.36-400,934.56

Finding the Fourth Proportional to 740,467.12, 1,021,845.36 and 400,934.56

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Solution

The fourth proportional to 740,467.12, 1,021,845.36 and 400,934.56 is: 553,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,467.12 : 1,021,845.36 = 400,934.56 : x
  2. Step 2: Convert to fraction form
    740,467.12/1,021,845.36 = 400,934.56/x
  3. Step 3: Cross multiply
    740,467.12x = 1,021,845.36 × 400,934.56
  4. Step 4: Simplify right side
    740,467.12x = 409,693,119,799.64
  5. Step 5: Solve for x
    x = 409,693,119,799.64/740,467.12
  6. Step 6: Final answer
    x = 553,290.09

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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.