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Finding the Fourth Proportional to 610,379.88, 842,334.35 and 338,459.23

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Solution

The fourth proportional to 610,379.88, 842,334.35 and 338,459.23 is: 467,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,379.88 : 842,334.35 = 338,459.23 : x
  2. Step 2: Convert to fraction form
    610,379.88/842,334.35 = 338,459.23/x
  3. Step 3: Cross multiply
    610,379.88x = 842,334.35 × 338,459.23
  4. Step 4: Simplify right side
    610,379.88x = 285,095,835,503.55
  5. Step 5: Solve for x
    x = 285,095,835,503.55/610,379.88
  6. Step 6: Final answer
    x = 467,079.35

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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.