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Finding the Fourth Proportional to 665,268.28, 918,070.16 and 363,462.28

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Solution

The fourth proportional to 665,268.28, 918,070.16 and 363,462.28 is: 501,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,268.28 : 918,070.16 = 363,462.28 : x
  2. Step 2: Convert to fraction form
    665,268.28/918,070.16 = 363,462.28/x
  3. Step 3: Cross multiply
    665,268.28x = 918,070.16 × 363,462.28
  4. Step 4: Simplify right side
    665,268.28x = 333,683,873,553.57
  5. Step 5: Solve for x
    x = 333,683,873,553.57/665,268.28
  6. Step 6: Final answer
    x = 501,577.91

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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.