Home / 674,995.05-1,011,521.42-290,638.39

Finding the Fourth Proportional to 674,995.05, 1,011,521.42 and 290,638.39

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Solution

The fourth proportional to 674,995.05, 1,011,521.42 and 290,638.39 is: 435,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,995.05 : 1,011,521.42 = 290,638.39 : x
  2. Step 2: Convert to fraction form
    674,995.05/1,011,521.42 = 290,638.39/x
  3. Step 3: Cross multiply
    674,995.05x = 1,011,521.42 × 290,638.39
  4. Step 4: Simplify right side
    674,995.05x = 293,986,952,977.32
  5. Step 5: Solve for x
    x = 293,986,952,977.32/674,995.05
  6. Step 6: Final answer
    x = 435,539.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.