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Finding the Fourth Proportional to 522,364.77, 720,966.77 and 338,830.79

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Solution

The fourth proportional to 522,364.77, 720,966.77 and 338,830.79 is: 467,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,364.77 : 720,966.77 = 338,830.79 : x
  2. Step 2: Convert to fraction form
    522,364.77/720,966.77 = 338,830.79/x
  3. Step 3: Cross multiply
    522,364.77x = 720,966.77 × 338,830.79
  4. Step 4: Simplify right side
    522,364.77x = 244,285,740,242.85
  5. Step 5: Solve for x
    x = 244,285,740,242.85/522,364.77
  6. Step 6: Final answer
    x = 467,653.55

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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.