Home / 990,519.31-1,366,922.09-537,810.31

Finding the Fourth Proportional to 990,519.31, 1,366,922.09 and 537,810.31

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Solution

The fourth proportional to 990,519.31, 1,366,922.09 and 537,810.31 is: 742,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,519.31 : 1,366,922.09 = 537,810.31 : x
  2. Step 2: Convert to fraction form
    990,519.31/1,366,922.09 = 537,810.31/x
  3. Step 3: Cross multiply
    990,519.31x = 1,366,922.09 × 537,810.31
  4. Step 4: Simplify right side
    990,519.31x = 735,144,783,445.09
  5. Step 5: Solve for x
    x = 735,144,783,445.09/990,519.31
  6. Step 6: Final answer
    x = 742,181.18

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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.