Home / 2,121,420.48-3,178,417.68-1,445,307

Finding the Fourth Proportional to 2,121,420.48, 3,178,417.68 and 1,445,307

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Solution

The fourth proportional to 2,121,420.48, 3,178,417.68 and 1,445,307 is: 2,165,430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,420.48 : 3,178,417.68 = 1,445,307 : x
  2. Step 2: Convert to fraction form
    2,121,420.48/3,178,417.68 = 1,445,307/x
  3. Step 3: Cross multiply
    2,121,420.48x = 3,178,417.68 × 1,445,307
  4. Step 4: Simplify right side
    2,121,420.48x = 4,593,789,321,827.76
  5. Step 5: Solve for x
    x = 4,593,789,321,827.76/2,121,420.48
  6. Step 6: Final answer
    x = 2,165,430.84

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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.