Home / 739,967.92-1,021,155.71-400,436.17

Finding the Fourth Proportional to 739,967.92, 1,021,155.71 and 400,436.17

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Solution

The fourth proportional to 739,967.92, 1,021,155.71 and 400,436.17 is: 552,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,967.92 : 1,021,155.71 = 400,436.17 : x
  2. Step 2: Convert to fraction form
    739,967.92/1,021,155.71 = 400,436.17/x
  3. Step 3: Cross multiply
    739,967.92x = 1,021,155.71 × 400,436.17
  4. Step 4: Simplify right side
    739,967.92x = 408,907,676,930.96
  5. Step 5: Solve for x
    x = 408,907,676,930.96/739,967.92
  6. Step 6: Final answer
    x = 552,601.90

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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.