Home / 739,965.30-1,021,152.09-400,433.55

Finding the Fourth Proportional to 739,965.30, 1,021,152.09 and 400,433.55

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Solution

The fourth proportional to 739,965.30, 1,021,152.09 and 400,433.55 is: 552,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,965.30 : 1,021,152.09 = 400,433.55 : x
  2. Step 2: Convert to fraction form
    739,965.30/1,021,152.09 = 400,433.55/x
  3. Step 3: Cross multiply
    739,965.30x = 1,021,152.09 × 400,433.55
  4. Step 4: Simplify right side
    739,965.30x = 408,903,556,488.62
  5. Step 5: Solve for x
    x = 408,903,556,488.62/739,965.30
  6. Step 6: Final answer
    x = 552,598.29

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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.