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Finding the Fourth Proportional to 641,213.34, 962,041.05 and 286,472.22

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Solution

The fourth proportional to 641,213.34, 962,041.05 and 286,472.22 is: 429,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,213.34 : 962,041.05 = 286,472.22 : x
  2. Step 2: Convert to fraction form
    641,213.34/962,041.05 = 286,472.22/x
  3. Step 3: Cross multiply
    641,213.34x = 962,041.05 × 286,472.22
  4. Step 4: Simplify right side
    641,213.34x = 275,598,035,324.63
  5. Step 5: Solve for x
    x = 275,598,035,324.63/641,213.34
  6. Step 6: Final answer
    x = 429,807.08

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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.