Home / 880,929.03-1,215,649.58-478,512.39

Finding the Fourth Proportional to 880,929.03, 1,215,649.58 and 478,512.39

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Solution

The fourth proportional to 880,929.03, 1,215,649.58 and 478,512.39 is: 660,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,929.03 : 1,215,649.58 = 478,512.39 : x
  2. Step 2: Convert to fraction form
    880,929.03/1,215,649.58 = 478,512.39/x
  3. Step 3: Cross multiply
    880,929.03x = 1,215,649.58 × 478,512.39
  4. Step 4: Simplify right side
    880,929.03x = 581,703,383,535.73
  5. Step 5: Solve for x
    x = 581,703,383,535.73/880,929.03
  6. Step 6: Final answer
    x = 660,329.45

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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.