Home / 642,931.40-964,274.25-322,994.44

Finding the Fourth Proportional to 642,931.40, 964,274.25 and 322,994.44

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Solution

The fourth proportional to 642,931.40, 964,274.25 and 322,994.44 is: 484,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,931.40 : 964,274.25 = 322,994.44 : x
  2. Step 2: Convert to fraction form
    642,931.40/964,274.25 = 322,994.44/x
  3. Step 3: Cross multiply
    642,931.40x = 964,274.25 × 322,994.44
  4. Step 4: Simplify right side
    642,931.40x = 311,455,221,385.17
  5. Step 5: Solve for x
    x = 311,455,221,385.17/642,931.40
  6. Step 6: Final answer
    x = 484,429.94

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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.