Home / 1,095,576.80-1,643,365.20-386,405.60

Finding the Fourth Proportional to 1,095,576.80, 1,643,365.20 and 386,405.60

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Solution

The fourth proportional to 1,095,576.80, 1,643,365.20 and 386,405.60 is: 579,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,576.80 : 1,643,365.20 = 386,405.60 : x
  2. Step 2: Convert to fraction form
    1,095,576.80/1,643,365.20 = 386,405.60/x
  3. Step 3: Cross multiply
    1,095,576.80x = 1,643,365.20 × 386,405.60
  4. Step 4: Simplify right side
    1,095,576.80x = 635,005,516,125.12
  5. Step 5: Solve for x
    x = 635,005,516,125.12/1,095,576.80
  6. Step 6: Final answer
    x = 579,608.40

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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.