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Finding the Fourth Proportional to 553,103.28, 830,149.44 and 283,415.36

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Solution

The fourth proportional to 553,103.28, 830,149.44 and 283,415.36 is: 425,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,103.28 : 830,149.44 = 283,415.36 : x
  2. Step 2: Convert to fraction form
    553,103.28/830,149.44 = 283,415.36/x
  3. Step 3: Cross multiply
    553,103.28x = 830,149.44 × 283,415.36
  4. Step 4: Simplify right side
    553,103.28x = 235,277,102,391.40
  5. Step 5: Solve for x
    x = 235,277,102,391.40/553,103.28
  6. Step 6: Final answer
    x = 425,376.44

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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.