Home / 915,022.95-1,262,697.30-507,131.73

Finding the Fourth Proportional to 915,022.95, 1,262,697.30 and 507,131.73

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Solution

The fourth proportional to 915,022.95, 1,262,697.30 and 507,131.73 is: 699,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,022.95 : 1,262,697.30 = 507,131.73 : x
  2. Step 2: Convert to fraction form
    915,022.95/1,262,697.30 = 507,131.73/x
  3. Step 3: Cross multiply
    915,022.95x = 1,262,697.30 × 507,131.73
  4. Step 4: Simplify right side
    915,022.95x = 640,353,866,215.33
  5. Step 5: Solve for x
    x = 640,353,866,215.33/915,022.95
  6. Step 6: Final answer
    x = 699,822.74

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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.