Home / 1,072,743.32-1,480,514.28-643,009.16

Finding the Fourth Proportional to 1,072,743.32, 1,480,514.28 and 643,009.16

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Solution

The fourth proportional to 1,072,743.32, 1,480,514.28 and 643,009.16 is: 887,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,743.32 : 1,480,514.28 = 643,009.16 : x
  2. Step 2: Convert to fraction form
    1,072,743.32/1,480,514.28 = 643,009.16/x
  3. Step 3: Cross multiply
    1,072,743.32x = 1,480,514.28 × 643,009.16
  4. Step 4: Simplify right side
    1,072,743.32x = 951,984,243,550.81
  5. Step 5: Solve for x
    x = 951,984,243,550.81/1,072,743.32
  6. Step 6: Final answer
    x = 887,429.66

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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.