Home / 418,723.46-577,653.05-257,483.24

Finding the Fourth Proportional to 418,723.46, 577,653.05 and 257,483.24

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Solution

The fourth proportional to 418,723.46, 577,653.05 and 257,483.24 is: 355,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,723.46 : 577,653.05 = 257,483.24 : x
  2. Step 2: Convert to fraction form
    418,723.46/577,653.05 = 257,483.24/x
  3. Step 3: Cross multiply
    418,723.46x = 577,653.05 × 257,483.24
  4. Step 4: Simplify right side
    418,723.46x = 148,735,978,909.88
  5. Step 5: Solve for x
    x = 148,735,978,909.88/418,723.46
  6. Step 6: Final answer
    x = 355,212.91

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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.