Home / 915,406.76-1,263,291.22-507,546.55

Finding the Fourth Proportional to 915,406.76, 1,263,291.22 and 507,546.55

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Solution

The fourth proportional to 915,406.76, 1,263,291.22 and 507,546.55 is: 700,430.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,406.76 : 1,263,291.22 = 507,546.55 : x
  2. Step 2: Convert to fraction form
    915,406.76/1,263,291.22 = 507,546.55/x
  3. Step 3: Cross multiply
    915,406.76x = 1,263,291.22 × 507,546.55
  4. Step 4: Simplify right side
    915,406.76x = 641,179,102,569.84
  5. Step 5: Solve for x
    x = 641,179,102,569.84/915,406.76
  6. Step 6: Final answer
    x = 700,430.81

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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.