Home / 790,486.38-1,185,918.53-258,008.40

Finding the Fourth Proportional to 790,486.38, 1,185,918.53 and 258,008.40

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Solution

The fourth proportional to 790,486.38, 1,185,918.53 and 258,008.40 is: 387,074.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,486.38 : 1,185,918.53 = 258,008.40 : x
  2. Step 2: Convert to fraction form
    790,486.38/1,185,918.53 = 258,008.40/x
  3. Step 3: Cross multiply
    790,486.38x = 1,185,918.53 × 258,008.40
  4. Step 4: Simplify right side
    790,486.38x = 305,976,941,165.61
  5. Step 5: Solve for x
    x = 305,976,941,165.61/790,486.38
  6. Step 6: Final answer
    x = 387,074.27

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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.