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Finding the Fourth Proportional to 610,194.85, 842,162.10 and 389,527.47

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Solution

The fourth proportional to 610,194.85, 842,162.10 and 389,527.47 is: 537,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,194.85 : 842,162.10 = 389,527.47 : x
  2. Step 2: Convert to fraction form
    610,194.85/842,162.10 = 389,527.47/x
  3. Step 3: Cross multiply
    610,194.85x = 842,162.10 × 389,527.47
  4. Step 4: Simplify right side
    610,194.85x = 328,045,272,142.89
  5. Step 5: Solve for x
    x = 328,045,272,142.89/610,194.85
  6. Step 6: Final answer
    x = 537,607.41

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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.