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Finding the Fourth Proportional to 610,781.56, 842,901.07 and 369,017.42

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Solution

The fourth proportional to 610,781.56, 842,901.07 and 369,017.42 is: 509,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,781.56 : 842,901.07 = 369,017.42 : x
  2. Step 2: Convert to fraction form
    610,781.56/842,901.07 = 369,017.42/x
  3. Step 3: Cross multiply
    610,781.56x = 842,901.07 × 369,017.42
  4. Step 4: Simplify right side
    610,781.56x = 311,045,177,178.55
  5. Step 5: Solve for x
    x = 311,045,177,178.55/610,781.56
  6. Step 6: Final answer
    x = 509,257.65

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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.