Home / 1,100,615.10-1,650,922.65-390,714.90

Finding the Fourth Proportional to 1,100,615.10, 1,650,922.65 and 390,714.90

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Solution

The fourth proportional to 1,100,615.10, 1,650,922.65 and 390,714.90 is: 586,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,615.10 : 1,650,922.65 = 390,714.90 : x
  2. Step 2: Convert to fraction form
    1,100,615.10/1,650,922.65 = 390,714.90/x
  3. Step 3: Cross multiply
    1,100,615.10x = 1,650,922.65 × 390,714.90
  4. Step 4: Simplify right side
    1,100,615.10x = 645,040,078,102.49
  5. Step 5: Solve for x
    x = 645,040,078,102.49/1,100,615.10
  6. Step 6: Final answer
    x = 586,072.35

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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.