Home / 1,010,289.28-1,515,683.36-300,314.24

Finding the Fourth Proportional to 1,010,289.28, 1,515,683.36 and 300,314.24

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Solution

The fourth proportional to 1,010,289.28, 1,515,683.36 and 300,314.24 is: 450,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,289.28 : 1,515,683.36 = 300,314.24 : x
  2. Step 2: Convert to fraction form
    1,010,289.28/1,515,683.36 = 300,314.24/x
  3. Step 3: Cross multiply
    1,010,289.28x = 1,515,683.36 × 300,314.24
  4. Step 4: Simplify right side
    1,010,289.28x = 455,181,296,339.05
  5. Step 5: Solve for x
    x = 455,181,296,339.05/1,010,289.28
  6. Step 6: Final answer
    x = 450,545.51

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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.