Home / 1,438,405.90-2,156,114.40-585,111.40

Finding the Fourth Proportional to 1,438,405.90, 2,156,114.40 and 585,111.40

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Solution

The fourth proportional to 1,438,405.90, 2,156,114.40 and 585,111.40 is: 877,059.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,405.90 : 2,156,114.40 = 585,111.40 : x
  2. Step 2: Convert to fraction form
    1,438,405.90/2,156,114.40 = 585,111.40/x
  3. Step 3: Cross multiply
    1,438,405.90x = 2,156,114.40 × 585,111.40
  4. Step 4: Simplify right side
    1,438,405.90x = 1,261,567,115,144.16
  5. Step 5: Solve for x
    x = 1,261,567,115,144.16/1,438,405.90
  6. Step 6: Final answer
    x = 877,059.19

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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.