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Finding the Fourth Proportional to 884,283, 1,220,507.36 and 561,930.12

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Solution

The fourth proportional to 884,283, 1,220,507.36 and 561,930.12 is: 775,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,283 : 1,220,507.36 = 561,930.12 : x
  2. Step 2: Convert to fraction form
    884,283/1,220,507.36 = 561,930.12/x
  3. Step 3: Cross multiply
    884,283x = 1,220,507.36 × 561,930.12
  4. Step 4: Simplify right side
    884,283x = 685,839,847,265.68
  5. Step 5: Solve for x
    x = 685,839,847,265.68/884,283
  6. Step 6: Final answer
    x = 775,588.64

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1.5x scale

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.