Home / 739,803.35-1,020,928.62-400,271.60

Finding the Fourth Proportional to 739,803.35, 1,020,928.62 and 400,271.60

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Solution

The fourth proportional to 739,803.35, 1,020,928.62 and 400,271.60 is: 552,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,803.35 : 1,020,928.62 = 400,271.60 : x
  2. Step 2: Convert to fraction form
    739,803.35/1,020,928.62 = 400,271.60/x
  3. Step 3: Cross multiply
    739,803.35x = 1,020,928.62 × 400,271.60
  4. Step 4: Simplify right side
    739,803.35x = 408,648,732,213.19
  5. Step 5: Solve for x
    x = 408,648,732,213.19/739,803.35
  6. Step 6: Final answer
    x = 552,374.81

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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.