Home / 1,779,822.64-2,669,705.68-431,996.40

Finding the Fourth Proportional to 1,779,822.64, 2,669,705.68 and 431,996.40

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Solution

The fourth proportional to 1,779,822.64, 2,669,705.68 and 431,996.40 is: 647,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,822.64 : 2,669,705.68 = 431,996.40 : x
  2. Step 2: Convert to fraction form
    1,779,822.64/2,669,705.68 = 431,996.40/x
  3. Step 3: Cross multiply
    1,779,822.64x = 2,669,705.68 × 431,996.40
  4. Step 4: Simplify right side
    1,779,822.64x = 1,153,303,242,819.55
  5. Step 5: Solve for x
    x = 1,153,303,242,819.55/1,779,822.64
  6. Step 6: Final answer
    x = 647,987.74

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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.