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Finding the Fourth Proportional to 500,272.95, 690,373.50 and 270,828.56

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Solution

The fourth proportional to 500,272.95, 690,373.50 and 270,828.56 is: 373,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,272.95 : 690,373.50 = 270,828.56 : x
  2. Step 2: Convert to fraction form
    500,272.95/690,373.50 = 270,828.56/x
  3. Step 3: Cross multiply
    500,272.95x = 690,373.50 × 270,828.56
  4. Step 4: Simplify right side
    500,272.95x = 186,972,860,867.16
  5. Step 5: Solve for x
    x = 186,972,860,867.16/500,272.95
  6. Step 6: Final answer
    x = 373,741.70

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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.