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Finding the Fourth Proportional to 610,427.76, 842,476.68 and 338,555.76

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Solution

The fourth proportional to 610,427.76, 842,476.68 and 338,555.76 is: 467,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,427.76 : 842,476.68 = 338,555.76 : x
  2. Step 2: Convert to fraction form
    610,427.76/842,476.68 = 338,555.76/x
  3. Step 3: Cross multiply
    610,427.76x = 842,476.68 × 338,555.76
  4. Step 4: Simplify right side
    610,427.76x = 285,225,332,679.68
  5. Step 5: Solve for x
    x = 285,225,332,679.68/610,427.76
  6. Step 6: Final answer
    x = 467,254.85

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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.