Home / 1,185,667.47-1,636,221.47-641,801.48

Finding the Fourth Proportional to 1,185,667.47, 1,636,221.47 and 641,801.48

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Solution

The fourth proportional to 1,185,667.47, 1,636,221.47 and 641,801.48 is: 885,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,667.47 : 1,636,221.47 = 641,801.48 : x
  2. Step 2: Convert to fraction form
    1,185,667.47/1,636,221.47 = 641,801.48/x
  3. Step 3: Cross multiply
    1,185,667.47x = 1,636,221.47 × 641,801.48
  4. Step 4: Simplify right side
    1,185,667.47x = 1,050,129,349,663.66
  5. Step 5: Solve for x
    x = 1,050,129,349,663.66/1,185,667.47
  6. Step 6: Final answer
    x = 885,686.23

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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.