Home / 739,344.45-1,019,907.46-642,330.32

Finding the Fourth Proportional to 739,344.45, 1,019,907.46 and 642,330.32

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Solution

The fourth proportional to 739,344.45, 1,019,907.46 and 642,330.32 is: 886,078.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,344.45 : 1,019,907.46 = 642,330.32 : x
  2. Step 2: Convert to fraction form
    739,344.45/1,019,907.46 = 642,330.32/x
  3. Step 3: Cross multiply
    739,344.45x = 1,019,907.46 × 642,330.32
  4. Step 4: Simplify right side
    739,344.45x = 655,117,485,152.19
  5. Step 5: Solve for x
    x = 655,117,485,152.19/739,344.45
  6. Step 6: Final answer
    x = 886,078.86

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Double scale
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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.