Home / 1,186,429.51-1,637,272.14-642,565.24

Finding the Fourth Proportional to 1,186,429.51, 1,637,272.14 and 642,565.24

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Solution

The fourth proportional to 1,186,429.51, 1,637,272.14 and 642,565.24 is: 886,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,429.51 : 1,637,272.14 = 642,565.24 : x
  2. Step 2: Convert to fraction form
    1,186,429.51/1,637,272.14 = 642,565.24/x
  3. Step 3: Cross multiply
    1,186,429.51x = 1,637,272.14 × 642,565.24
  4. Step 4: Simplify right side
    1,186,429.51x = 1,052,054,159,081.61
  5. Step 5: Solve for x
    x = 1,052,054,159,081.61/1,186,429.51
  6. Step 6: Final answer
    x = 886,739.71

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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.