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Finding the Fourth Proportional to 502,406.70, 693,313.41 and 276,047.34

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Solution

The fourth proportional to 502,406.70, 693,313.41 and 276,047.34 is: 380,941.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,406.70 : 693,313.41 = 276,047.34 : x
  2. Step 2: Convert to fraction form
    502,406.70/693,313.41 = 276,047.34/x
  3. Step 3: Cross multiply
    502,406.70x = 693,313.41 × 276,047.34
  4. Step 4: Simplify right side
    502,406.70x = 191,387,322,616.83
  5. Step 5: Solve for x
    x = 191,387,322,616.83/502,406.70
  6. Step 6: Final answer
    x = 380,941.02

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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.