Home / 680,994.54-939,815.15-375,070.86

Finding the Fourth Proportional to 680,994.54, 939,815.15 and 375,070.86

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Solution

The fourth proportional to 680,994.54, 939,815.15 and 375,070.86 is: 517,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,994.54 : 939,815.15 = 375,070.86 : x
  2. Step 2: Convert to fraction form
    680,994.54/939,815.15 = 375,070.86/x
  3. Step 3: Cross multiply
    680,994.54x = 939,815.15 × 375,070.86
  4. Step 4: Simplify right side
    680,994.54x = 352,497,274,676.18
  5. Step 5: Solve for x
    x = 352,497,274,676.18/680,994.54
  6. Step 6: Final answer
    x = 517,621.29

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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.