Home / 915,393.20-1,263,317.45-507,622.93

Finding the Fourth Proportional to 915,393.20, 1,263,317.45 and 507,622.93

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Solution

The fourth proportional to 915,393.20, 1,263,317.45 and 507,622.93 is: 700,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,393.20 : 1,263,317.45 = 507,622.93 : x
  2. Step 2: Convert to fraction form
    915,393.20/1,263,317.45 = 507,622.93/x
  3. Step 3: Cross multiply
    915,393.20x = 1,263,317.45 × 507,622.93
  4. Step 4: Simplify right side
    915,393.20x = 641,288,899,792.72
  5. Step 5: Solve for x
    x = 641,288,899,792.72/915,393.20
  6. Step 6: Final answer
    x = 700,561.14

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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.