Home / 939,712.90-1,408,585.20-370,874.20

Finding the Fourth Proportional to 939,712.90, 1,408,585.20 and 370,874.20

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Solution

The fourth proportional to 939,712.90, 1,408,585.20 and 370,874.20 is: 555,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,712.90 : 1,408,585.20 = 370,874.20 : x
  2. Step 2: Convert to fraction form
    939,712.90/1,408,585.20 = 370,874.20/x
  3. Step 3: Cross multiply
    939,712.90x = 1,408,585.20 × 370,874.20
  4. Step 4: Simplify right side
    939,712.90x = 522,407,909,181.84
  5. Step 5: Solve for x
    x = 522,407,909,181.84/939,712.90
  6. Step 6: Final answer
    x = 555,922.89

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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.