Home / 915,530.28-1,263,446.94-507,649.32

Finding the Fourth Proportional to 915,530.28, 1,263,446.94 and 507,649.32

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Solution

The fourth proportional to 915,530.28, 1,263,446.94 and 507,649.32 is: 700,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,530.28 : 1,263,446.94 = 507,649.32 : x
  2. Step 2: Convert to fraction form
    915,530.28/1,263,446.94 = 507,649.32/x
  3. Step 3: Cross multiply
    915,530.28x = 1,263,446.94 × 507,649.32
  4. Step 4: Simplify right side
    915,530.28x = 641,387,979,947.08
  5. Step 5: Solve for x
    x = 641,387,979,947.08/915,530.28
  6. Step 6: Final answer
    x = 700,564.46

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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.