Home / 1,155,408-1,594,433.20-639,148.44

Finding the Fourth Proportional to 1,155,408, 1,594,433.20 and 639,148.44

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Solution

The fourth proportional to 1,155,408, 1,594,433.20 and 639,148.44 is: 882,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,408 : 1,594,433.20 = 639,148.44 : x
  2. Step 2: Convert to fraction form
    1,155,408/1,594,433.20 = 639,148.44/x
  3. Step 3: Cross multiply
    1,155,408x = 1,594,433.20 × 639,148.44
  4. Step 4: Simplify right side
    1,155,408x = 1,019,079,492,464.21
  5. Step 5: Solve for x
    x = 1,019,079,492,464.21/1,155,408
  6. Step 6: Final answer
    x = 882,008.34

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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.