Home / 739,967.36-1,021,154.94-400,435.61

Finding the Fourth Proportional to 739,967.36, 1,021,154.94 and 400,435.61

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Solution

The fourth proportional to 739,967.36, 1,021,154.94 and 400,435.61 is: 552,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,967.36 : 1,021,154.94 = 400,435.61 : x
  2. Step 2: Convert to fraction form
    739,967.36/1,021,154.94 = 400,435.61/x
  3. Step 3: Cross multiply
    739,967.36x = 1,021,154.94 × 400,435.61
  4. Step 4: Simplify right side
    739,967.36x = 408,906,796,197.64
  5. Step 5: Solve for x
    x = 408,906,796,197.64/739,967.36
  6. Step 6: Final answer
    x = 552,601.13

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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.