Home / 665,669.25-918,623.57-363,863.25

Finding the Fourth Proportional to 665,669.25, 918,623.57 and 363,863.25

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Solution

The fourth proportional to 665,669.25, 918,623.57 and 363,863.25 is: 502,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,669.25 : 918,623.57 = 363,863.25 : x
  2. Step 2: Convert to fraction form
    665,669.25/918,623.57 = 363,863.25/x
  3. Step 3: Cross multiply
    665,669.25x = 918,623.57 × 363,863.25
  4. Step 4: Simplify right side
    665,669.25x = 334,253,355,887.49
  5. Step 5: Solve for x
    x = 334,253,355,887.49/665,669.25
  6. Step 6: Final answer
    x = 502,131.29

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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.