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Finding the Fourth Proportional to 610,191.90, 842,064.80 and 338,259.10

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Solution

The fourth proportional to 610,191.90, 842,064.80 and 338,259.10 is: 466,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,191.90 : 842,064.80 = 338,259.10 : x
  2. Step 2: Convert to fraction form
    610,191.90/842,064.80 = 338,259.10/x
  3. Step 3: Cross multiply
    610,191.90x = 842,064.80 × 338,259.10
  4. Step 4: Simplify right side
    610,191.90x = 284,836,081,389.68
  5. Step 5: Solve for x
    x = 284,836,081,389.68/610,191.90
  6. Step 6: Final answer
    x = 466,797.55

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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.