Home / 1,212,999.70-1,818,333.15-942,978.10

Finding the Fourth Proportional to 1,212,999.70, 1,818,333.15 and 942,978.10

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Solution

The fourth proportional to 1,212,999.70, 1,818,333.15 and 942,978.10 is: 1,413,560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,999.70 : 1,818,333.15 = 942,978.10 : x
  2. Step 2: Convert to fraction form
    1,212,999.70/1,818,333.15 = 942,978.10/x
  3. Step 3: Cross multiply
    1,212,999.70x = 1,818,333.15 × 942,978.10
  4. Step 4: Simplify right side
    1,212,999.70x = 1,714,648,338,954.02
  5. Step 5: Solve for x
    x = 1,714,648,338,954.02/1,212,999.70
  6. Step 6: Final answer
    x = 1,413,560.40

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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.