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Finding the Fourth Proportional to 610,390.88, 842,349.54 and 338,470.23

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Solution

The fourth proportional to 610,390.88, 842,349.54 and 338,470.23 is: 467,094.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,390.88 : 842,349.54 = 338,470.23 : x
  2. Step 2: Convert to fraction form
    610,390.88/842,349.54 = 338,470.23/x
  3. Step 3: Cross multiply
    610,390.88x = 842,349.54 × 338,470.23
  4. Step 4: Simplify right side
    610,390.88x = 285,110,242,544.19
  5. Step 5: Solve for x
    x = 285,110,242,544.19/610,390.88
  6. Step 6: Final answer
    x = 467,094.53

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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.