Home / 1,128,109.90-1,692,681.60-488,609.24

Finding the Fourth Proportional to 1,128,109.90, 1,692,681.60 and 488,609.24

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Solution

The fourth proportional to 1,128,109.90, 1,692,681.60 and 488,609.24 is: 733,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,109.90 : 1,692,681.60 = 488,609.24 : x
  2. Step 2: Convert to fraction form
    1,128,109.90/1,692,681.60 = 488,609.24/x
  3. Step 3: Cross multiply
    1,128,109.90x = 1,692,681.60 × 488,609.24
  4. Step 4: Simplify right side
    1,128,109.90x = 827,059,870,137.98
  5. Step 5: Solve for x
    x = 827,059,870,137.98/1,128,109.90
  6. Step 6: Final answer
    x = 733,137.68

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1.5x scale

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.