Home / 915,387.66-1,263,309.81-507,617.40

Finding the Fourth Proportional to 915,387.66, 1,263,309.81 and 507,617.40

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Solution

The fourth proportional to 915,387.66, 1,263,309.81 and 507,617.40 is: 700,553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,387.66 : 1,263,309.81 = 507,617.40 : x
  2. Step 2: Convert to fraction form
    915,387.66/1,263,309.81 = 507,617.40/x
  3. Step 3: Cross multiply
    915,387.66x = 1,263,309.81 × 507,617.40
  4. Step 4: Simplify right side
    915,387.66x = 641,278,041,146.69
  5. Step 5: Solve for x
    x = 641,278,041,146.69/915,387.66
  6. Step 6: Final answer
    x = 700,553.51

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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.