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Finding the Fourth Proportional to 610,528.88, 842,580.31 and 338,684.42

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Solution

The fourth proportional to 610,528.88, 842,580.31 and 338,684.42 is: 467,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,528.88 : 842,580.31 = 338,684.42 : x
  2. Step 2: Convert to fraction form
    610,528.88/842,580.31 = 338,684.42/x
  3. Step 3: Cross multiply
    610,528.88x = 842,580.31 × 338,684.42
  4. Step 4: Simplify right side
    610,528.88x = 285,368,823,595.77
  5. Step 5: Solve for x
    x = 285,368,823,595.77/610,528.88
  6. Step 6: Final answer
    x = 467,412.49

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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.