Home / 855,229.70-1,282,680.52-256,210.40

Finding the Fourth Proportional to 855,229.70, 1,282,680.52 and 256,210.40

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Solution

The fourth proportional to 855,229.70, 1,282,680.52 and 256,210.40 is: 384,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,229.70 : 1,282,680.52 = 256,210.40 : x
  2. Step 2: Convert to fraction form
    855,229.70/1,282,680.52 = 256,210.40/x
  3. Step 3: Cross multiply
    855,229.70x = 1,282,680.52 × 256,210.40
  4. Step 4: Simplify right side
    855,229.70x = 328,636,089,101.41
  5. Step 5: Solve for x
    x = 328,636,089,101.41/855,229.70
  6. Step 6: Final answer
    x = 384,266.46

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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.