Home / 915,580.71-1,263,449.88-507,658.23

Finding the Fourth Proportional to 915,580.71, 1,263,449.88 and 507,658.23

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Solution

The fourth proportional to 915,580.71, 1,263,449.88 and 507,658.23 is: 700,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,580.71 : 1,263,449.88 = 507,658.23 : x
  2. Step 2: Convert to fraction form
    915,580.71/1,263,449.88 = 507,658.23/x
  3. Step 3: Cross multiply
    915,580.71x = 1,263,449.88 × 507,658.23
  4. Step 4: Simplify right side
    915,580.71x = 641,400,729,774.51
  5. Step 5: Solve for x
    x = 641,400,729,774.51/915,580.71
  6. Step 6: Final answer
    x = 700,539.80

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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.