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Finding the Fourth Proportional to 553,669.60, 830,504.40 and 132,945.48

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Solution

The fourth proportional to 553,669.60, 830,504.40 and 132,945.48 is: 199,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,669.60 : 830,504.40 = 132,945.48 : x
  2. Step 2: Convert to fraction form
    553,669.60/830,504.40 = 132,945.48/x
  3. Step 3: Cross multiply
    553,669.60x = 830,504.40 × 132,945.48
  4. Step 4: Simplify right side
    553,669.60x = 110,411,801,947.59
  5. Step 5: Solve for x
    x = 110,411,801,947.59/553,669.60
  6. Step 6: Final answer
    x = 199,418.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.