Home / 740,297.05-1,021,610.27-400,765.30

Finding the Fourth Proportional to 740,297.05, 1,021,610.27 and 400,765.30

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Solution

The fourth proportional to 740,297.05, 1,021,610.27 and 400,765.30 is: 553,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,297.05 : 1,021,610.27 = 400,765.30 : x
  2. Step 2: Convert to fraction form
    740,297.05/1,021,610.27 = 400,765.30/x
  3. Step 3: Cross multiply
    740,297.05x = 1,021,610.27 × 400,765.30
  4. Step 4: Simplify right side
    740,297.05x = 409,425,944,787.52
  5. Step 5: Solve for x
    x = 409,425,944,787.52/740,297.05
  6. Step 6: Final answer
    x = 553,056.30

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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.