Home / 1,072,316.32-1,479,426.40-685,358.08

Finding the Fourth Proportional to 1,072,316.32, 1,479,426.40 and 685,358.08

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Solution

The fourth proportional to 1,072,316.32, 1,479,426.40 and 685,358.08 is: 945,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,316.32 : 1,479,426.40 = 685,358.08 : x
  2. Step 2: Convert to fraction form
    1,072,316.32/1,479,426.40 = 685,358.08/x
  3. Step 3: Cross multiply
    1,072,316.32x = 1,479,426.40 × 685,358.08
  4. Step 4: Simplify right side
    1,072,316.32x = 1,013,936,837,005.31
  5. Step 5: Solve for x
    x = 1,013,936,837,005.31/1,072,316.32
  6. Step 6: Final answer
    x = 945,557.59

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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.