Home / 1,185,867.16-1,636,484.97-641,988.58

Finding the Fourth Proportional to 1,185,867.16, 1,636,484.97 and 641,988.58

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Solution

The fourth proportional to 1,185,867.16, 1,636,484.97 and 641,988.58 is: 885,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,867.16 : 1,636,484.97 = 641,988.58 : x
  2. Step 2: Convert to fraction form
    1,185,867.16/1,636,484.97 = 641,988.58/x
  3. Step 3: Cross multiply
    1,185,867.16x = 1,636,484.97 × 641,988.58
  4. Step 4: Simplify right side
    1,185,867.16x = 1,050,604,662,081.64
  5. Step 5: Solve for x
    x = 1,050,604,662,081.64/1,185,867.16
  6. Step 6: Final answer
    x = 885,937.90

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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.