Home / 1,237,008.78-1,707,030.77-685,701.32

Finding the Fourth Proportional to 1,237,008.78, 1,707,030.77 and 685,701.32

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Solution

The fourth proportional to 1,237,008.78, 1,707,030.77 and 685,701.32 is: 946,244.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,008.78 : 1,707,030.77 = 685,701.32 : x
  2. Step 2: Convert to fraction form
    1,237,008.78/1,707,030.77 = 685,701.32/x
  3. Step 3: Cross multiply
    1,237,008.78x = 1,707,030.77 × 685,701.32
  4. Step 4: Simplify right side
    1,237,008.78x = 1,170,513,240,305.96
  5. Step 5: Solve for x
    x = 1,170,513,240,305.96/1,237,008.78
  6. Step 6: Final answer
    x = 946,244.89

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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.