Home / 752,420.22-1,038,325.95-425,729.76

Finding the Fourth Proportional to 752,420.22, 1,038,325.95 and 425,729.76

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Solution

The fourth proportional to 752,420.22, 1,038,325.95 and 425,729.76 is: 587,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,420.22 : 1,038,325.95 = 425,729.76 : x
  2. Step 2: Convert to fraction form
    752,420.22/1,038,325.95 = 425,729.76/x
  3. Step 3: Cross multiply
    752,420.22x = 1,038,325.95 × 425,729.76
  4. Step 4: Simplify right side
    752,420.22x = 442,046,257,495.27
  5. Step 5: Solve for x
    x = 442,046,257,495.27/752,420.22
  6. Step 6: Final answer
    x = 587,499.17

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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.