Home / 1,186,287.28-1,637,077.16-642,427.28

Finding the Fourth Proportional to 1,186,287.28, 1,637,077.16 and 642,427.28

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Solution

The fourth proportional to 1,186,287.28, 1,637,077.16 and 642,427.28 is: 886,550.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,287.28 : 1,637,077.16 = 642,427.28 : x
  2. Step 2: Convert to fraction form
    1,186,287.28/1,637,077.16 = 642,427.28/x
  3. Step 3: Cross multiply
    1,186,287.28x = 1,637,077.16 × 642,427.28
  4. Step 4: Simplify right side
    1,186,287.28x = 1,051,703,027,048.92
  5. Step 5: Solve for x
    x = 1,051,703,027,048.92/1,186,287.28
  6. Step 6: Final answer
    x = 886,550.03

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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.