Home / 790,951.21-1,186,428.51-285,868.75

Finding the Fourth Proportional to 790,951.21, 1,186,428.51 and 285,868.75

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Solution

The fourth proportional to 790,951.21, 1,186,428.51 and 285,868.75 is: 428,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,951.21 : 1,186,428.51 = 285,868.75 : x
  2. Step 2: Convert to fraction form
    790,951.21/1,186,428.51 = 285,868.75/x
  3. Step 3: Cross multiply
    790,951.21x = 1,186,428.51 × 285,868.75
  4. Step 4: Simplify right side
    790,951.21x = 339,162,835,118.06
  5. Step 5: Solve for x
    x = 339,162,835,118.06/790,951.21
  6. Step 6: Final answer
    x = 428,803.74

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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.