Home / 1,186,657.85-1,637,595.70-642,793.64

Finding the Fourth Proportional to 1,186,657.85, 1,637,595.70 and 642,793.64

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Solution

The fourth proportional to 1,186,657.85, 1,637,595.70 and 642,793.64 is: 887,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,657.85 : 1,637,595.70 = 642,793.64 : x
  2. Step 2: Convert to fraction form
    1,186,657.85/1,637,595.70 = 642,793.64/x
  3. Step 3: Cross multiply
    1,186,657.85x = 1,637,595.70 × 642,793.64
  4. Step 4: Simplify right side
    1,186,657.85x = 1,052,636,091,056.39
  5. Step 5: Solve for x
    x = 1,052,636,091,056.39/1,186,657.85
  6. Step 6: Final answer
    x = 887,059.47

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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.