Home / 459,521.04-689,314.32-122,559.78

Finding the Fourth Proportional to 459,521.04, 689,314.32 and 122,559.78

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Solution

The fourth proportional to 459,521.04, 689,314.32 and 122,559.78 is: 183,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,521.04 : 689,314.32 = 122,559.78 : x
  2. Step 2: Convert to fraction form
    459,521.04/689,314.32 = 122,559.78/x
  3. Step 3: Cross multiply
    459,521.04x = 689,314.32 × 122,559.78
  4. Step 4: Simplify right side
    459,521.04x = 84,482,211,410.05
  5. Step 5: Solve for x
    x = 84,482,211,410.05/459,521.04
  6. Step 6: Final answer
    x = 183,848.41

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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.