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Finding the Fourth Proportional to 500,045.87, 690,058.42 and 270,598.25

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Solution

The fourth proportional to 500,045.87, 690,058.42 and 270,598.25 is: 373,422.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,045.87 : 690,058.42 = 270,598.25 : x
  2. Step 2: Convert to fraction form
    500,045.87/690,058.42 = 270,598.25/x
  3. Step 3: Cross multiply
    500,045.87x = 690,058.42 × 270,598.25
  4. Step 4: Simplify right side
    500,045.87x = 186,728,596,722.98
  5. Step 5: Solve for x
    x = 186,728,596,722.98/500,045.87
  6. Step 6: Final answer
    x = 373,422.94

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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.