Home / 1,461,131.25-2,191,915.57-514,335.21

Finding the Fourth Proportional to 1,461,131.25, 2,191,915.57 and 514,335.21

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Solution

The fourth proportional to 1,461,131.25, 2,191,915.57 and 514,335.21 is: 771,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461,131.25 : 2,191,915.57 = 514,335.21 : x
  2. Step 2: Convert to fraction form
    1,461,131.25/2,191,915.57 = 514,335.21/x
  3. Step 3: Cross multiply
    1,461,131.25x = 2,191,915.57 × 514,335.21
  4. Step 4: Simplify right side
    1,461,131.25x = 1,127,379,354,998.22
  5. Step 5: Solve for x
    x = 1,127,379,354,998.22/1,461,131.25
  6. Step 6: Final answer
    x = 771,579.80

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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.