Home / 556,819.04-834,956.40-388,420.08

Finding the Fourth Proportional to 556,819.04, 834,956.40 and 388,420.08

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Solution

The fourth proportional to 556,819.04, 834,956.40 and 388,420.08 is: 582,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,819.04 : 834,956.40 = 388,420.08 : x
  2. Step 2: Convert to fraction form
    556,819.04/834,956.40 = 388,420.08/x
  3. Step 3: Cross multiply
    556,819.04x = 834,956.40 × 388,420.08
  4. Step 4: Simplify right side
    556,819.04x = 324,313,831,684.51
  5. Step 5: Solve for x
    x = 324,313,831,684.51/556,819.04
  6. Step 6: Final answer
    x = 582,440.27

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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.