Home / 913,548.89-1,260,665.28-505,651.52

Finding the Fourth Proportional to 913,548.89, 1,260,665.28 and 505,651.52

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Solution

The fourth proportional to 913,548.89, 1,260,665.28 and 505,651.52 is: 697,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,548.89 : 1,260,665.28 = 505,651.52 : x
  2. Step 2: Convert to fraction form
    913,548.89/1,260,665.28 = 505,651.52/x
  3. Step 3: Cross multiply
    913,548.89x = 1,260,665.28 × 505,651.52
  4. Step 4: Simplify right side
    913,548.89x = 637,457,308,739.90
  5. Step 5: Solve for x
    x = 637,457,308,739.90/913,548.89
  6. Step 6: Final answer
    x = 697,781.28

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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.