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Finding the Fourth Proportional to 610,960.70, 916,550.40 and 256,010.60

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Solution

The fourth proportional to 610,960.70, 916,550.40 and 256,010.60 is: 384,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,960.70 : 916,550.40 = 256,010.60 : x
  2. Step 2: Convert to fraction form
    610,960.70/916,550.40 = 256,010.60/x
  3. Step 3: Cross multiply
    610,960.70x = 916,550.40 × 256,010.60
  4. Step 4: Simplify right side
    610,960.70x = 234,646,617,834.24
  5. Step 5: Solve for x
    x = 234,646,617,834.24/610,960.70
  6. Step 6: Final answer
    x = 384,061.72

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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.