Home / 915,525.50-1,263,440.39-507,644.54

Finding the Fourth Proportional to 915,525.50, 1,263,440.39 and 507,644.54

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Solution

The fourth proportional to 915,525.50, 1,263,440.39 and 507,644.54 is: 700,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,525.50 : 1,263,440.39 = 507,644.54 : x
  2. Step 2: Convert to fraction form
    915,525.50/1,263,440.39 = 507,644.54/x
  3. Step 3: Cross multiply
    915,525.50x = 1,263,440.39 × 507,644.54
  4. Step 4: Simplify right side
    915,525.50x = 641,378,613,060.75
  5. Step 5: Solve for x
    x = 641,378,613,060.75/915,525.50
  6. Step 6: Final answer
    x = 700,557.89

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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.