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Finding the Fourth Proportional to 909,852, 1,364,720.52 and 355,332.72

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Solution

The fourth proportional to 909,852, 1,364,720.52 and 355,332.72 is: 532,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,852 : 1,364,720.52 = 355,332.72 : x
  2. Step 2: Convert to fraction form
    909,852/1,364,720.52 = 355,332.72/x
  3. Step 3: Cross multiply
    909,852x = 1,364,720.52 × 355,332.72
  4. Step 4: Simplify right side
    909,852x = 484,929,854,411.41
  5. Step 5: Solve for x
    x = 484,929,854,411.41/909,852
  6. Step 6: Final answer
    x = 532,976.63

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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.