Home / 1,186,350.75-1,637,155.31-642,473.91

Finding the Fourth Proportional to 1,186,350.75, 1,637,155.31 and 642,473.91

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Solution

The fourth proportional to 1,186,350.75, 1,637,155.31 and 642,473.91 is: 886,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,350.75 : 1,637,155.31 = 642,473.91 : x
  2. Step 2: Convert to fraction form
    1,186,350.75/1,637,155.31 = 642,473.91/x
  3. Step 3: Cross multiply
    1,186,350.75x = 1,637,155.31 × 642,473.91
  4. Step 4: Simplify right side
    1,186,350.75x = 1,051,829,570,080.59
  5. Step 5: Solve for x
    x = 1,051,829,570,080.59/1,186,350.75
  6. Step 6: Final answer
    x = 886,609.27

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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.