Home / 1,185,984.15-1,636,655.96-642,119.87

Finding the Fourth Proportional to 1,185,984.15, 1,636,655.96 and 642,119.87

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Solution

The fourth proportional to 1,185,984.15, 1,636,655.96 and 642,119.87 is: 886,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,984.15 : 1,636,655.96 = 642,119.87 : x
  2. Step 2: Convert to fraction form
    1,185,984.15/1,636,655.96 = 642,119.87/x
  3. Step 3: Cross multiply
    1,185,984.15x = 1,636,655.96 × 642,119.87
  4. Step 4: Simplify right side
    1,185,984.15x = 1,050,929,300,876.05
  5. Step 5: Solve for x
    x = 1,050,929,300,876.05/1,185,984.15
  6. Step 6: Final answer
    x = 886,124.24

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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.