Home / 2,909,579.67-4,015,344.52-1,620,420.05

Finding the Fourth Proportional to 2,909,579.67, 4,015,344.52 and 1,620,420.05

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Solution

The fourth proportional to 2,909,579.67, 4,015,344.52 and 1,620,420.05 is: 2,236,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,579.67 : 4,015,344.52 = 1,620,420.05 : x
  2. Step 2: Convert to fraction form
    2,909,579.67/4,015,344.52 = 1,620,420.05/x
  3. Step 3: Cross multiply
    2,909,579.67x = 4,015,344.52 × 1,620,420.05
  4. Step 4: Simplify right side
    2,909,579.67x = 6,506,544,779,929.51
  5. Step 5: Solve for x
    x = 6,506,544,779,929.51/2,909,579.67
  6. Step 6: Final answer
    x = 2,236,249.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.