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Finding the Fourth Proportional to 553,611, 763,983.19 and 298,962.19

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Solution

The fourth proportional to 553,611, 763,983.19 and 298,962.19 is: 412,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,611 : 763,983.19 = 298,962.19 : x
  2. Step 2: Convert to fraction form
    553,611/763,983.19 = 298,962.19/x
  3. Step 3: Cross multiply
    553,611x = 763,983.19 × 298,962.19
  4. Step 4: Simplify right side
    553,611x = 228,402,087,605.59
  5. Step 5: Solve for x
    x = 228,402,087,605.59/553,611
  6. Step 6: Final answer
    x = 412,567.83

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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.