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Finding the Fourth Proportional to 553,604.40, 829,240.20 and 448,628.40

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Solution

The fourth proportional to 553,604.40, 829,240.20 and 448,628.40 is: 671,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,604.40 : 829,240.20 = 448,628.40 : x
  2. Step 2: Convert to fraction form
    553,604.40/829,240.20 = 448,628.40/x
  3. Step 3: Cross multiply
    553,604.40x = 829,240.20 × 448,628.40
  4. Step 4: Simplify right side
    553,604.40x = 372,020,704,141.68
  5. Step 5: Solve for x
    x = 372,020,704,141.68/553,604.40
  6. Step 6: Final answer
    x = 671,997.38

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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.