Home / 1,186,446.32-1,637,287.56-642,569.60

Finding the Fourth Proportional to 1,186,446.32, 1,637,287.56 and 642,569.60

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Solution

The fourth proportional to 1,186,446.32, 1,637,287.56 and 642,569.60 is: 886,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,446.32 : 1,637,287.56 = 642,569.60 : x
  2. Step 2: Convert to fraction form
    1,186,446.32/1,637,287.56 = 642,569.60/x
  3. Step 3: Cross multiply
    1,186,446.32x = 1,637,287.56 × 642,569.60
  4. Step 4: Simplify right side
    1,186,446.32x = 1,052,071,212,514.18
  5. Step 5: Solve for x
    x = 1,052,071,212,514.18/1,186,446.32
  6. Step 6: Final answer
    x = 886,741.52

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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.