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Finding the Fourth Proportional to 1,935,894.40, 2,904,302.40 and 813,385.60

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Solution

The fourth proportional to 1,935,894.40, 2,904,302.40 and 813,385.60 is: 1,220,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,894.40 : 2,904,302.40 = 813,385.60 : x
  2. Step 2: Convert to fraction form
    1,935,894.40/2,904,302.40 = 813,385.60/x
  3. Step 3: Cross multiply
    1,935,894.40x = 2,904,302.40 × 813,385.60
  4. Step 4: Simplify right side
    1,935,894.40x = 2,362,317,750,205.44
  5. Step 5: Solve for x
    x = 2,362,317,750,205.44/1,935,894.40
  6. Step 6: Final answer
    x = 1,220,272.01

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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.