Home / 636,221.02-877,985.97-349,742.86

Finding the Fourth Proportional to 636,221.02, 877,985.97 and 349,742.86

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Solution

The fourth proportional to 636,221.02, 877,985.97 and 349,742.86 is: 482,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,221.02 : 877,985.97 = 349,742.86 : x
  2. Step 2: Convert to fraction form
    636,221.02/877,985.97 = 349,742.86/x
  3. Step 3: Cross multiply
    636,221.02x = 877,985.97 × 349,742.86
  4. Step 4: Simplify right side
    636,221.02x = 307,069,324,187.67
  5. Step 5: Solve for x
    x = 307,069,324,187.67/636,221.02
  6. Step 6: Final answer
    x = 482,645.68

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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.