Home / 778,839.90-1,167,453.45-423,102.30

Finding the Fourth Proportional to 778,839.90, 1,167,453.45 and 423,102.30

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Solution

The fourth proportional to 778,839.90, 1,167,453.45 and 423,102.30 is: 634,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,839.90 : 1,167,453.45 = 423,102.30 : x
  2. Step 2: Convert to fraction form
    778,839.90/1,167,453.45 = 423,102.30/x
  3. Step 3: Cross multiply
    778,839.90x = 1,167,453.45 × 423,102.30
  4. Step 4: Simplify right side
    778,839.90x = 493,952,239,837.94
  5. Step 5: Solve for x
    x = 493,952,239,837.94/778,839.90
  6. Step 6: Final answer
    x = 634,215.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.