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Finding the Fourth Proportional to 508,427.02, 700,282.41 and 378,950.56

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Solution

The fourth proportional to 508,427.02, 700,282.41 and 378,950.56 is: 521,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,427.02 : 700,282.41 = 378,950.56 : x
  2. Step 2: Convert to fraction form
    508,427.02/700,282.41 = 378,950.56/x
  3. Step 3: Cross multiply
    508,427.02x = 700,282.41 × 378,950.56
  4. Step 4: Simplify right side
    508,427.02x = 265,372,411,427.65
  5. Step 5: Solve for x
    x = 265,372,411,427.65/508,427.02
  6. Step 6: Final answer
    x = 521,947.89

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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.