Home / 1,181,726.24-1,630,775.76-645,178.40

Finding the Fourth Proportional to 1,181,726.24, 1,630,775.76 and 645,178.40

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Solution

The fourth proportional to 1,181,726.24, 1,630,775.76 and 645,178.40 is: 890,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,726.24 : 1,630,775.76 = 645,178.40 : x
  2. Step 2: Convert to fraction form
    1,181,726.24/1,630,775.76 = 645,178.40/x
  3. Step 3: Cross multiply
    1,181,726.24x = 1,630,775.76 × 645,178.40
  4. Step 4: Simplify right side
    1,181,726.24x = 1,052,141,295,595.58
  5. Step 5: Solve for x
    x = 1,052,141,295,595.58/1,181,726.24
  6. Step 6: Final answer
    x = 890,342.67

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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.