Home / 1,212,931.20-1,815,897.60-740,539.20

Finding the Fourth Proportional to 1,212,931.20, 1,815,897.60 and 740,539.20

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Solution

The fourth proportional to 1,212,931.20, 1,815,897.60 and 740,539.20 is: 1,108,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,931.20 : 1,815,897.60 = 740,539.20 : x
  2. Step 2: Convert to fraction form
    1,212,931.20/1,815,897.60 = 740,539.20/x
  3. Step 3: Cross multiply
    1,212,931.20x = 1,815,897.60 × 740,539.20
  4. Step 4: Simplify right side
    1,212,931.20x = 1,344,743,355,985.92
  5. Step 5: Solve for x
    x = 1,344,743,355,985.92/1,212,931.20
  6. Step 6: Final answer
    x = 1,108,672.41

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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.