Home / 915,580.56-1,263,248.13-528,369.39

Finding the Fourth Proportional to 915,580.56, 1,263,248.13 and 528,369.39

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Solution

The fourth proportional to 915,580.56, 1,263,248.13 and 528,369.39 is: 729,003.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,580.56 : 1,263,248.13 = 528,369.39 : x
  2. Step 2: Convert to fraction form
    915,580.56/1,263,248.13 = 528,369.39/x
  3. Step 3: Cross multiply
    915,580.56x = 1,263,248.13 × 528,369.39
  4. Step 4: Simplify right side
    915,580.56x = 667,461,643,866.74
  5. Step 5: Solve for x
    x = 667,461,643,866.74/915,580.56
  6. Step 6: Final answer
    x = 729,003.73

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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.