Home / 900,869.12-1,351,513.94-261,186.20

Finding the Fourth Proportional to 900,869.12, 1,351,513.94 and 261,186.20

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Solution

The fourth proportional to 900,869.12, 1,351,513.94 and 261,186.20 is: 391,840.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,869.12 : 1,351,513.94 = 261,186.20 : x
  2. Step 2: Convert to fraction form
    900,869.12/1,351,513.94 = 261,186.20/x
  3. Step 3: Cross multiply
    900,869.12x = 1,351,513.94 × 261,186.20
  4. Step 4: Simplify right side
    900,869.12x = 352,996,790,235.63
  5. Step 5: Solve for x
    x = 352,996,790,235.63/900,869.12
  6. Step 6: Final answer
    x = 391,840.26

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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.