Home / 1,658,586.71-2,289,555.88-1,115,037.75

Finding the Fourth Proportional to 1,658,586.71, 2,289,555.88 and 1,115,037.75

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Solution

The fourth proportional to 1,658,586.71, 2,289,555.88 and 1,115,037.75 is: 1,539,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,586.71 : 2,289,555.88 = 1,115,037.75 : x
  2. Step 2: Convert to fraction form
    1,658,586.71/2,289,555.88 = 1,115,037.75/x
  3. Step 3: Cross multiply
    1,658,586.71x = 2,289,555.88 × 1,115,037.75
  4. Step 4: Simplify right side
    1,658,586.71x = 2,552,941,234,146.88
  5. Step 5: Solve for x
    x = 2,552,941,234,146.88/1,658,586.71
  6. Step 6: Final answer
    x = 1,539,226.88

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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.