Home / 909,186-1,255,214.88-808,305.36

Finding the Fourth Proportional to 909,186, 1,255,214.88 and 808,305.36

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Solution

The fourth proportional to 909,186, 1,255,214.88 and 808,305.36 is: 1,115,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,186 : 1,255,214.88 = 808,305.36 : x
  2. Step 2: Convert to fraction form
    909,186/1,255,214.88 = 808,305.36/x
  3. Step 3: Cross multiply
    909,186x = 1,255,214.88 × 808,305.36
  4. Step 4: Simplify right side
    909,186x = 1,014,596,915,455.76
  5. Step 5: Solve for x
    x = 1,014,596,915,455.76/909,186
  6. Step 6: Final answer
    x = 1,115,939.88

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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.