Home / 1,186,056.35-1,636,750.86-642,180.90

Finding the Fourth Proportional to 1,186,056.35, 1,636,750.86 and 642,180.90

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Solution

The fourth proportional to 1,186,056.35, 1,636,750.86 and 642,180.90 is: 886,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,056.35 : 1,636,750.86 = 642,180.90 : x
  2. Step 2: Convert to fraction form
    1,186,056.35/1,636,750.86 = 642,180.90/x
  3. Step 3: Cross multiply
    1,186,056.35x = 1,636,750.86 × 642,180.90
  4. Step 4: Simplify right side
    1,186,056.35x = 1,051,090,140,350.57
  5. Step 5: Solve for x
    x = 1,051,090,140,350.57/1,186,056.35
  6. Step 6: Final answer
    x = 886,205.91

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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.