Home / 1,124,214.40-1,687,099.20-808,897.60

Finding the Fourth Proportional to 1,124,214.40, 1,687,099.20 and 808,897.60

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Solution

The fourth proportional to 1,124,214.40, 1,687,099.20 and 808,897.60 is: 1,213,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,214.40 : 1,687,099.20 = 808,897.60 : x
  2. Step 2: Convert to fraction form
    1,124,214.40/1,687,099.20 = 808,897.60/x
  3. Step 3: Cross multiply
    1,124,214.40x = 1,687,099.20 × 808,897.60
  4. Step 4: Simplify right side
    1,124,214.40x = 1,364,690,493,841.92
  5. Step 5: Solve for x
    x = 1,364,690,493,841.92/1,124,214.40
  6. Step 6: Final answer
    x = 1,213,905.90

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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.