Home / 1,109,529.36-1,664,341.56-435,756.78

Finding the Fourth Proportional to 1,109,529.36, 1,664,341.56 and 435,756.78

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Solution

The fourth proportional to 1,109,529.36, 1,664,341.56 and 435,756.78 is: 653,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,529.36 : 1,664,341.56 = 435,756.78 : x
  2. Step 2: Convert to fraction form
    1,109,529.36/1,664,341.56 = 435,756.78/x
  3. Step 3: Cross multiply
    1,109,529.36x = 1,664,341.56 × 435,756.78
  4. Step 4: Simplify right side
    1,109,529.36x = 725,248,119,005.78
  5. Step 5: Solve for x
    x = 725,248,119,005.78/1,109,529.36
  6. Step 6: Final answer
    x = 653,653.83

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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.