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Finding the Fourth Proportional to 610,813.80, 843,146.82 and 369,105.48

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Solution

The fourth proportional to 610,813.80, 843,146.82 and 369,105.48 is: 509,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,813.80 : 843,146.82 = 369,105.48 : x
  2. Step 2: Convert to fraction form
    610,813.80/843,146.82 = 369,105.48/x
  3. Step 3: Cross multiply
    610,813.80x = 843,146.82 × 369,105.48
  4. Step 4: Simplify right side
    610,813.80x = 311,210,111,706.57
  5. Step 5: Solve for x
    x = 311,210,111,706.57/610,813.80
  6. Step 6: Final answer
    x = 509,500.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.