Home / 766,206.12-1,057,271.86-439,502.21

Finding the Fourth Proportional to 766,206.12, 1,057,271.86 and 439,502.21

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Solution

The fourth proportional to 766,206.12, 1,057,271.86 and 439,502.21 is: 606,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,206.12 : 1,057,271.86 = 439,502.21 : x
  2. Step 2: Convert to fraction form
    766,206.12/1,057,271.86 = 439,502.21/x
  3. Step 3: Cross multiply
    766,206.12x = 1,057,271.86 × 439,502.21
  4. Step 4: Simplify right side
    766,206.12x = 464,673,311,556.94
  5. Step 5: Solve for x
    x = 464,673,311,556.94/766,206.12
  6. Step 6: Final answer
    x = 606,459.93

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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.