Home / 939,970.22-1,292,171.12-808,668.21

Finding the Fourth Proportional to 939,970.22, 1,292,171.12 and 808,668.21

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Solution

The fourth proportional to 939,970.22, 1,292,171.12 and 808,668.21 is: 1,111,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,970.22 : 1,292,171.12 = 808,668.21 : x
  2. Step 2: Convert to fraction form
    939,970.22/1,292,171.12 = 808,668.21/x
  3. Step 3: Cross multiply
    939,970.22x = 1,292,171.12 × 808,668.21
  4. Step 4: Simplify right side
    939,970.22x = 1,044,937,706,624.10
  5. Step 5: Solve for x
    x = 1,044,937,706,624.10/939,970.22
  6. Step 6: Final answer
    x = 1,111,671.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.