Home / 1,258,422.89-1,886,887.71-499,856.47

Finding the Fourth Proportional to 1,258,422.89, 1,886,887.71 and 499,856.47

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Solution

The fourth proportional to 1,258,422.89, 1,886,887.71 and 499,856.47 is: 749,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,422.89 : 1,886,887.71 = 499,856.47 : x
  2. Step 2: Convert to fraction form
    1,258,422.89/1,886,887.71 = 499,856.47/x
  3. Step 3: Cross multiply
    1,258,422.89x = 1,886,887.71 × 499,856.47
  4. Step 4: Simplify right side
    1,258,422.89x = 943,173,025,289.76
  5. Step 5: Solve for x
    x = 943,173,025,289.76/1,258,422.89
  6. Step 6: Final answer
    x = 749,488.14

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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.