Home / 739,803.52-1,020,921.60-400,264.32

Finding the Fourth Proportional to 739,803.52, 1,020,921.60 and 400,264.32

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Solution

The fourth proportional to 739,803.52, 1,020,921.60 and 400,264.32 is: 552,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,803.52 : 1,020,921.60 = 400,264.32 : x
  2. Step 2: Convert to fraction form
    739,803.52/1,020,921.60 = 400,264.32/x
  3. Step 3: Cross multiply
    739,803.52x = 1,020,921.60 × 400,264.32
  4. Step 4: Simplify right side
    739,803.52x = 408,638,489,997.31
  5. Step 5: Solve for x
    x = 408,638,489,997.31/739,803.52
  6. Step 6: Final answer
    x = 552,360.83

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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.