Home / 1,186,373.74-1,637,188.24-642,500.86

Finding the Fourth Proportional to 1,186,373.74, 1,637,188.24 and 642,500.86

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Solution

The fourth proportional to 1,186,373.74, 1,637,188.24 and 642,500.86 is: 886,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,373.74 : 1,637,188.24 = 642,500.86 : x
  2. Step 2: Convert to fraction form
    1,186,373.74/1,637,188.24 = 642,500.86/x
  3. Step 3: Cross multiply
    1,186,373.74x = 1,637,188.24 × 642,500.86
  4. Step 4: Simplify right side
    1,186,373.74x = 1,051,894,840,783.44
  5. Step 5: Solve for x
    x = 1,051,894,840,783.44/1,186,373.74
  6. Step 6: Final answer
    x = 886,647.11

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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.