Home / 766,208.12-1,057,274.61-439,504.21

Finding the Fourth Proportional to 766,208.12, 1,057,274.61 and 439,504.21

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Solution

The fourth proportional to 766,208.12, 1,057,274.61 and 439,504.21 is: 606,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,208.12 : 1,057,274.61 = 439,504.21 : x
  2. Step 2: Convert to fraction form
    766,208.12/1,057,274.61 = 439,504.21/x
  3. Step 3: Cross multiply
    766,208.12x = 1,057,274.61 × 439,504.21
  4. Step 4: Simplify right side
    766,208.12x = 464,676,642,221.11
  5. Step 5: Solve for x
    x = 464,676,642,221.11/766,208.12
  6. Step 6: Final answer
    x = 606,462.70

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Double scale
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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.