Home / 1,120,015.40-1,679,586.30-488,498.60

Finding the Fourth Proportional to 1,120,015.40, 1,679,586.30 and 488,498.60

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Solution

The fourth proportional to 1,120,015.40, 1,679,586.30 and 488,498.60 is: 732,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,015.40 : 1,679,586.30 = 488,498.60 : x
  2. Step 2: Convert to fraction form
    1,120,015.40/1,679,586.30 = 488,498.60/x
  3. Step 3: Cross multiply
    1,120,015.40x = 1,679,586.30 × 488,498.60
  4. Step 4: Simplify right side
    1,120,015.40x = 820,475,556,129.18
  5. Step 5: Solve for x
    x = 820,475,556,129.18/1,120,015.40
  6. Step 6: Final answer
    x = 732,557.39

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Double scale
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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.