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Finding the Fourth Proportional to 610,280.78, 842,237.37 and 338,433.93

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Solution

The fourth proportional to 610,280.78, 842,237.37 and 338,433.93 is: 467,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,280.78 : 842,237.37 = 338,433.93 : x
  2. Step 2: Convert to fraction form
    610,280.78/842,237.37 = 338,433.93/x
  3. Step 3: Cross multiply
    610,280.78x = 842,237.37 × 338,433.93
  4. Step 4: Simplify right side
    610,280.78x = 285,041,703,121.96
  5. Step 5: Solve for x
    x = 285,041,703,121.96/610,280.78
  6. Step 6: Final answer
    x = 467,066.50

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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.