Home / 1,221,740.12-1,831,873.86-547,699.40

Finding the Fourth Proportional to 1,221,740.12, 1,831,873.86 and 547,699.40

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Solution

The fourth proportional to 1,221,740.12, 1,831,873.86 and 547,699.40 is: 821,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,740.12 : 1,831,873.86 = 547,699.40 : x
  2. Step 2: Convert to fraction form
    1,221,740.12/1,831,873.86 = 547,699.40/x
  3. Step 3: Cross multiply
    1,221,740.12x = 1,831,873.86 × 547,699.40
  4. Step 4: Simplify right side
    1,221,740.12x = 1,003,316,213,997.68
  5. Step 5: Solve for x
    x = 1,003,316,213,997.68/1,221,740.12
  6. Step 6: Final answer
    x = 821,219.01

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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.