Home / 740,062.38-1,021,286.10-400,530.63

Finding the Fourth Proportional to 740,062.38, 1,021,286.10 and 400,530.63

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Solution

The fourth proportional to 740,062.38, 1,021,286.10 and 400,530.63 is: 552,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,062.38 : 1,021,286.10 = 400,530.63 : x
  2. Step 2: Convert to fraction form
    740,062.38/1,021,286.10 = 400,530.63/x
  3. Step 3: Cross multiply
    740,062.38x = 1,021,286.10 × 400,530.63
  4. Step 4: Simplify right side
    740,062.38x = 409,056,365,043.24
  5. Step 5: Solve for x
    x = 409,056,365,043.24/740,062.38
  6. Step 6: Final answer
    x = 552,732.28

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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.