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Finding the Fourth Proportional to 485,748.64, 670,331.82 and 270,888.94

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Solution

The fourth proportional to 485,748.64, 670,331.82 and 270,888.94 is: 373,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,748.64 : 670,331.82 = 270,888.94 : x
  2. Step 2: Convert to fraction form
    485,748.64/670,331.82 = 270,888.94/x
  3. Step 3: Cross multiply
    485,748.64x = 670,331.82 × 270,888.94
  4. Step 4: Simplify right side
    485,748.64x = 181,585,476,168.07
  5. Step 5: Solve for x
    x = 181,585,476,168.07/485,748.64
  6. Step 6: Final answer
    x = 373,826.01

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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.