Home / 459,054.90-688,527.54-122,120.28

Finding the Fourth Proportional to 459,054.90, 688,527.54 and 122,120.28

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Solution

The fourth proportional to 459,054.90, 688,527.54 and 122,120.28 is: 183,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,054.90 : 688,527.54 = 122,120.28 : x
  2. Step 2: Convert to fraction form
    459,054.90/688,527.54 = 122,120.28/x
  3. Step 3: Cross multiply
    459,054.90x = 688,527.54 × 122,120.28
  4. Step 4: Simplify right side
    459,054.90x = 84,083,175,972.51
  5. Step 5: Solve for x
    x = 84,083,175,972.51/459,054.90
  6. Step 6: Final answer
    x = 183,165.84

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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.