Home / 1,779,810.66-2,669,687.70-431,984.40

Finding the Fourth Proportional to 1,779,810.66, 2,669,687.70 and 431,984.40

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Solution

The fourth proportional to 1,779,810.66, 2,669,687.70 and 431,984.40 is: 647,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,810.66 : 2,669,687.70 = 431,984.40 : x
  2. Step 2: Convert to fraction form
    1,779,810.66/2,669,687.70 = 431,984.40/x
  3. Step 3: Cross multiply
    1,779,810.66x = 2,669,687.70 × 431,984.40
  4. Step 4: Simplify right side
    1,779,810.66x = 1,153,263,439,271.88
  5. Step 5: Solve for x
    x = 1,153,263,439,271.88/1,779,810.66
  6. Step 6: Final answer
    x = 647,969.73

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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.