Home / 855,228.70-1,282,679.02-256,209.40

Finding the Fourth Proportional to 855,228.70, 1,282,679.02 and 256,209.40

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Solution

The fourth proportional to 855,228.70, 1,282,679.02 and 256,209.40 is: 384,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,228.70 : 1,282,679.02 = 256,209.40 : x
  2. Step 2: Convert to fraction form
    855,228.70/1,282,679.02 = 256,209.40/x
  3. Step 3: Cross multiply
    855,228.70x = 1,282,679.02 × 256,209.40
  4. Step 4: Simplify right side
    855,228.70x = 328,634,422,106.79
  5. Step 5: Solve for x
    x = 328,634,422,106.79/855,228.70
  6. Step 6: Final answer
    x = 384,264.96

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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.