Home / 407,220.62-562,031.93-225,990.78

Finding the Fourth Proportional to 407,220.62, 562,031.93 and 225,990.78

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Solution

The fourth proportional to 407,220.62, 562,031.93 and 225,990.78 is: 311,904.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,220.62 : 562,031.93 = 225,990.78 : x
  2. Step 2: Convert to fraction form
    407,220.62/562,031.93 = 225,990.78/x
  3. Step 3: Cross multiply
    407,220.62x = 562,031.93 × 225,990.78
  4. Step 4: Simplify right side
    407,220.62x = 127,014,032,702.96
  5. Step 5: Solve for x
    x = 127,014,032,702.96/407,220.62
  6. Step 6: Final answer
    x = 311,904.72

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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.