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Finding the Fourth Proportional to 500,292.69, 690,399.12 and 270,844.10

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Solution

The fourth proportional to 500,292.69, 690,399.12 and 270,844.10 is: 373,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,292.69 : 690,399.12 = 270,844.10 : x
  2. Step 2: Convert to fraction form
    500,292.69/690,399.12 = 270,844.10/x
  3. Step 3: Cross multiply
    500,292.69x = 690,399.12 × 270,844.10
  4. Step 4: Simplify right side
    500,292.69x = 186,990,523,490.98
  5. Step 5: Solve for x
    x = 186,990,523,490.98/500,292.69
  6. Step 6: Final answer
    x = 373,762.25

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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.