Home / 1,181,642.24-1,630,671.36-645,109.76

Finding the Fourth Proportional to 1,181,642.24, 1,630,671.36 and 645,109.76

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Solution

The fourth proportional to 1,181,642.24, 1,630,671.36 and 645,109.76 is: 890,254.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,642.24 : 1,630,671.36 = 645,109.76 : x
  2. Step 2: Convert to fraction form
    1,181,642.24/1,630,671.36 = 645,109.76/x
  3. Step 3: Cross multiply
    1,181,642.24x = 1,630,671.36 × 645,109.76
  4. Step 4: Simplify right side
    1,181,642.24x = 1,051,962,009,688.47
  5. Step 5: Solve for x
    x = 1,051,962,009,688.47/1,181,642.24
  6. Step 6: Final answer
    x = 890,254.24

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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.