Home / 405,478.71-559,538.04-224,180.07

Finding the Fourth Proportional to 405,478.71, 559,538.04 and 224,180.07

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Solution

The fourth proportional to 405,478.71, 559,538.04 and 224,180.07 is: 309,356.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,478.71 : 559,538.04 = 224,180.07 : x
  2. Step 2: Convert to fraction form
    405,478.71/559,538.04 = 224,180.07/x
  3. Step 3: Cross multiply
    405,478.71x = 559,538.04 × 224,180.07
  4. Step 4: Simplify right side
    405,478.71x = 125,437,276,974.86
  5. Step 5: Solve for x
    x = 125,437,276,974.86/405,478.71
  6. Step 6: Final answer
    x = 309,356.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.