Home / 1,186,262.12-1,637,033.57-642,385.46

Finding the Fourth Proportional to 1,186,262.12, 1,637,033.57 and 642,385.46

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Solution

The fourth proportional to 1,186,262.12, 1,637,033.57 and 642,385.46 is: 886,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,262.12 : 1,637,033.57 = 642,385.46 : x
  2. Step 2: Convert to fraction form
    1,186,262.12/1,637,033.57 = 642,385.46/x
  3. Step 3: Cross multiply
    1,186,262.12x = 1,637,033.57 × 642,385.46
  4. Step 4: Simplify right side
    1,186,262.12x = 1,051,606,563,843.71
  5. Step 5: Solve for x
    x = 1,051,606,563,843.71/1,186,262.12
  6. Step 6: Final answer
    x = 886,487.52

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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.