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Finding the Fourth Proportional to 553,323.60, 763,576.20 and 338,447.88

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Solution

The fourth proportional to 553,323.60, 763,576.20 and 338,447.88 is: 467,051.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,323.60 : 763,576.20 = 338,447.88 : x
  2. Step 2: Convert to fraction form
    553,323.60/763,576.20 = 338,447.88/x
  3. Step 3: Cross multiply
    553,323.60x = 763,576.20 × 338,447.88
  4. Step 4: Simplify right side
    553,323.60x = 258,430,746,108.46
  5. Step 5: Solve for x
    x = 258,430,746,108.46/553,323.60
  6. Step 6: Final answer
    x = 467,051.73

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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.