Home / 698,626.48-964,206.65-392,728.06

Finding the Fourth Proportional to 698,626.48, 964,206.65 and 392,728.06

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Solution

The fourth proportional to 698,626.48, 964,206.65 and 392,728.06 is: 542,022.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,626.48 : 964,206.65 = 392,728.06 : x
  2. Step 2: Convert to fraction form
    698,626.48/964,206.65 = 392,728.06/x
  3. Step 3: Cross multiply
    698,626.48x = 964,206.65 × 392,728.06
  4. Step 4: Simplify right side
    698,626.48x = 378,671,007,093.60
  5. Step 5: Solve for x
    x = 378,671,007,093.60/698,626.48
  6. Step 6: Final answer
    x = 542,022.12

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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.