Home / 1,615,278.20-2,422,479.90-478,038.20

Finding the Fourth Proportional to 1,615,278.20, 2,422,479.90 and 478,038.20

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Solution

The fourth proportional to 1,615,278.20, 2,422,479.90 and 478,038.20 is: 716,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,278.20 : 2,422,479.90 = 478,038.20 : x
  2. Step 2: Convert to fraction form
    1,615,278.20/2,422,479.90 = 478,038.20/x
  3. Step 3: Cross multiply
    1,615,278.20x = 2,422,479.90 × 478,038.20
  4. Step 4: Simplify right side
    1,615,278.20x = 1,158,037,930,932.18
  5. Step 5: Solve for x
    x = 1,158,037,930,932.18/1,615,278.20
  6. Step 6: Final answer
    x = 716,927.85

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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.