Home / 1,129,561.02-1,558,410.30-645,783.66

Finding the Fourth Proportional to 1,129,561.02, 1,558,410.30 and 645,783.66

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Solution

The fourth proportional to 1,129,561.02, 1,558,410.30 and 645,783.66 is: 890,961.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,561.02 : 1,558,410.30 = 645,783.66 : x
  2. Step 2: Convert to fraction form
    1,129,561.02/1,558,410.30 = 645,783.66/x
  3. Step 3: Cross multiply
    1,129,561.02x = 1,558,410.30 × 645,783.66
  4. Step 4: Simplify right side
    1,129,561.02x = 1,006,395,907,315.70
  5. Step 5: Solve for x
    x = 1,006,395,907,315.70/1,129,561.02
  6. Step 6: Final answer
    x = 890,961.97

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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.