Home / 739,009.52-1,019,833.98-399,477.50

Finding the Fourth Proportional to 739,009.52, 1,019,833.98 and 399,477.50

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Solution

The fourth proportional to 739,009.52, 1,019,833.98 and 399,477.50 is: 551,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,009.52 : 1,019,833.98 = 399,477.50 : x
  2. Step 2: Convert to fraction form
    739,009.52/1,019,833.98 = 399,477.50/x
  3. Step 3: Cross multiply
    739,009.52x = 1,019,833.98 × 399,477.50
  4. Step 4: Simplify right side
    739,009.52x = 407,400,728,745.45
  5. Step 5: Solve for x
    x = 407,400,728,745.45/739,009.52
  6. Step 6: Final answer
    x = 551,279.41

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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.