Home / 407,036.52-561,702.03-225,719.19

Finding the Fourth Proportional to 407,036.52, 561,702.03 and 225,719.19

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Solution

The fourth proportional to 407,036.52, 561,702.03 and 225,719.19 is: 311,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,036.52 : 561,702.03 = 225,719.19 : x
  2. Step 2: Convert to fraction form
    407,036.52/561,702.03 = 225,719.19/x
  3. Step 3: Cross multiply
    407,036.52x = 561,702.03 × 225,719.19
  4. Step 4: Simplify right side
    407,036.52x = 126,786,927,232.96
  5. Step 5: Solve for x
    x = 126,786,927,232.96/407,036.52
  6. Step 6: Final answer
    x = 311,487.84

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1.5x scale

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.