Home / 690,311.04-952,693.56-403,812.96

Finding the Fourth Proportional to 690,311.04, 952,693.56 and 403,812.96

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Solution

The fourth proportional to 690,311.04, 952,693.56 and 403,812.96 is: 557,299.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,311.04 : 952,693.56 = 403,812.96 : x
  2. Step 2: Convert to fraction form
    690,311.04/952,693.56 = 403,812.96/x
  3. Step 3: Cross multiply
    690,311.04x = 952,693.56 × 403,812.96
  4. Step 4: Simplify right side
    690,311.04x = 384,710,006,436.54
  5. Step 5: Solve for x
    x = 384,710,006,436.54/690,311.04
  6. Step 6: Final answer
    x = 557,299.51

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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.