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Finding the Fourth Proportional to 610,426.17, 842,430.11 and 338,518.89

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Solution

The fourth proportional to 610,426.17, 842,430.11 and 338,518.89 is: 467,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,426.17 : 842,430.11 = 338,518.89 : x
  2. Step 2: Convert to fraction form
    610,426.17/842,430.11 = 338,518.89/x
  3. Step 3: Cross multiply
    610,426.17x = 842,430.11 × 338,518.89
  4. Step 4: Simplify right side
    610,426.17x = 285,178,504,047.18
  5. Step 5: Solve for x
    x = 285,178,504,047.18/610,426.17
  6. Step 6: Final answer
    x = 467,179.35

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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.