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Finding the Fourth Proportional to 610,262.47, 842,211.89 and 338,415.49

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Solution

The fourth proportional to 610,262.47, 842,211.89 and 338,415.49 is: 467,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,262.47 : 842,211.89 = 338,415.49 : x
  2. Step 2: Convert to fraction form
    610,262.47/842,211.89 = 338,415.49/x
  3. Step 3: Cross multiply
    610,262.47x = 842,211.89 × 338,415.49
  4. Step 4: Simplify right side
    610,262.47x = 285,017,549,438.18
  5. Step 5: Solve for x
    x = 285,017,549,438.18/610,262.47
  6. Step 6: Final answer
    x = 467,040.93

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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.