Home / 1,020,124.60-1,530,186.90-355,276.60

Finding the Fourth Proportional to 1,020,124.60, 1,530,186.90 and 355,276.60

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Solution

The fourth proportional to 1,020,124.60, 1,530,186.90 and 355,276.60 is: 532,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,124.60 : 1,530,186.90 = 355,276.60 : x
  2. Step 2: Convert to fraction form
    1,020,124.60/1,530,186.90 = 355,276.60/x
  3. Step 3: Cross multiply
    1,020,124.60x = 1,530,186.90 × 355,276.60
  4. Step 4: Simplify right side
    1,020,124.60x = 543,639,599,196.54
  5. Step 5: Solve for x
    x = 543,639,599,196.54/1,020,124.60
  6. Step 6: Final answer
    x = 532,914.90

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Double scale
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Similar ratio
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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.