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Finding the Fourth Proportional to 500,473.68, 690,647.04 and 274,119.36

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Solution

The fourth proportional to 500,473.68, 690,647.04 and 274,119.36 is: 378,281.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,473.68 : 690,647.04 = 274,119.36 : x
  2. Step 2: Convert to fraction form
    500,473.68/690,647.04 = 274,119.36/x
  3. Step 3: Cross multiply
    500,473.68x = 690,647.04 × 274,119.36
  4. Step 4: Simplify right side
    500,473.68x = 189,319,724,590.69
  5. Step 5: Solve for x
    x = 189,319,724,590.69/500,473.68
  6. Step 6: Final answer
    x = 378,281.08

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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.