Home / 781,712.21-1,078,672.19-437,567.41

Finding the Fourth Proportional to 781,712.21, 1,078,672.19 and 437,567.41

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Solution

The fourth proportional to 781,712.21, 1,078,672.19 and 437,567.41 is: 603,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,712.21 : 1,078,672.19 = 437,567.41 : x
  2. Step 2: Convert to fraction form
    781,712.21/1,078,672.19 = 437,567.41/x
  3. Step 3: Cross multiply
    781,712.21x = 1,078,672.19 × 437,567.41
  4. Step 4: Simplify right side
    781,712.21x = 471,991,791,023.97
  5. Step 5: Solve for x
    x = 471,991,791,023.97/781,712.21
  6. Step 6: Final answer
    x = 603,792.28

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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.