Home / 672,078.40-1,008,117.60-432,929.95

Finding the Fourth Proportional to 672,078.40, 1,008,117.60 and 432,929.95

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Solution

The fourth proportional to 672,078.40, 1,008,117.60 and 432,929.95 is: 649,394.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,078.40 : 1,008,117.60 = 432,929.95 : x
  2. Step 2: Convert to fraction form
    672,078.40/1,008,117.60 = 432,929.95/x
  3. Step 3: Cross multiply
    672,078.40x = 1,008,117.60 × 432,929.95
  4. Step 4: Simplify right side
    672,078.40x = 436,444,302,162.12
  5. Step 5: Solve for x
    x = 436,444,302,162.12/672,078.40
  6. Step 6: Final answer
    x = 649,394.93

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Similar ratio
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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.