Home / 2,818,398.72-3,890,398.86-1,672,478.76

Finding the Fourth Proportional to 2,818,398.72, 3,890,398.86 and 1,672,478.76

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Solution

The fourth proportional to 2,818,398.72, 3,890,398.86 and 1,672,478.76 is: 2,308,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,398.72 : 3,890,398.86 = 1,672,478.76 : x
  2. Step 2: Convert to fraction form
    2,818,398.72/3,890,398.86 = 1,672,478.76/x
  3. Step 3: Cross multiply
    2,818,398.72x = 3,890,398.86 × 1,672,478.76
  4. Step 4: Simplify right side
    2,818,398.72x = 6,506,609,461,278.21
  5. Step 5: Solve for x
    x = 6,506,609,461,278.21/2,818,398.72
  6. Step 6: Final answer
    x = 2,308,619.22

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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.