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Finding the Fourth Proportional to 610,515, 842,510.70 and 338,624.52

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Solution

The fourth proportional to 610,515, 842,510.70 and 338,624.52 is: 467,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,515 : 842,510.70 = 338,624.52 : x
  2. Step 2: Convert to fraction form
    610,515/842,510.70 = 338,624.52/x
  3. Step 3: Cross multiply
    610,515x = 842,510.70 × 338,624.52
  4. Step 4: Simplify right side
    610,515x = 285,294,781,382.36
  5. Step 5: Solve for x
    x = 285,294,781,382.36/610,515
  6. Step 6: Final answer
    x = 467,301.84

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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.