Home / 660,544.48-990,124.02-323,119.36

Finding the Fourth Proportional to 660,544.48, 990,124.02 and 323,119.36

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Solution

The fourth proportional to 660,544.48, 990,124.02 and 323,119.36 is: 484,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,544.48 : 990,124.02 = 323,119.36 : x
  2. Step 2: Convert to fraction form
    660,544.48/990,124.02 = 323,119.36/x
  3. Step 3: Cross multiply
    660,544.48x = 990,124.02 × 323,119.36
  4. Step 4: Simplify right side
    660,544.48x = 319,928,239,663.03
  5. Step 5: Solve for x
    x = 319,928,239,663.03/660,544.48
  6. Step 6: Final answer
    x = 484,340.19

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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.