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Finding the Fourth Proportional to 554,737.60, 832,106.40 and 455,010.40

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Solution

The fourth proportional to 554,737.60, 832,106.40 and 455,010.40 is: 682,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,737.60 : 832,106.40 = 455,010.40 : x
  2. Step 2: Convert to fraction form
    554,737.60/832,106.40 = 455,010.40/x
  3. Step 3: Cross multiply
    554,737.60x = 832,106.40 × 455,010.40
  4. Step 4: Simplify right side
    554,737.60x = 378,617,065,906.56
  5. Step 5: Solve for x
    x = 378,617,065,906.56/554,737.60
  6. Step 6: Final answer
    x = 682,515.60

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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.