Home / 459,933.20-689,899.80-404,637.20

Finding the Fourth Proportional to 459,933.20, 689,899.80 and 404,637.20

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Solution

The fourth proportional to 459,933.20, 689,899.80 and 404,637.20 is: 606,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,933.20 : 689,899.80 = 404,637.20 : x
  2. Step 2: Convert to fraction form
    459,933.20/689,899.80 = 404,637.20/x
  3. Step 3: Cross multiply
    459,933.20x = 689,899.80 × 404,637.20
  4. Step 4: Simplify right side
    459,933.20x = 279,159,123,352.56
  5. Step 5: Solve for x
    x = 279,159,123,352.56/459,933.20
  6. Step 6: Final answer
    x = 606,955.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.