Home / 915,336.75-1,263,164.64-507,437.57

Finding the Fourth Proportional to 915,336.75, 1,263,164.64 and 507,437.57

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Solution

The fourth proportional to 915,336.75, 1,263,164.64 and 507,437.57 is: 700,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,336.75 : 1,263,164.64 = 507,437.57 : x
  2. Step 2: Convert to fraction form
    915,336.75/1,263,164.64 = 507,437.57/x
  3. Step 3: Cross multiply
    915,336.75x = 1,263,164.64 × 507,437.57
  4. Step 4: Simplify right side
    915,336.75x = 640,977,189,115.70
  5. Step 5: Solve for x
    x = 640,977,189,115.70/915,336.75
  6. Step 6: Final answer
    x = 700,263.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.