Home / 913,628.46-1,260,792.02-505,721.56

Finding the Fourth Proportional to 913,628.46, 1,260,792.02 and 505,721.56

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Solution

The fourth proportional to 913,628.46, 1,260,792.02 and 505,721.56 is: 697,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,628.46 : 1,260,792.02 = 505,721.56 : x
  2. Step 2: Convert to fraction form
    913,628.46/1,260,792.02 = 505,721.56/x
  3. Step 3: Cross multiply
    913,628.46x = 1,260,792.02 × 505,721.56
  4. Step 4: Simplify right side
    913,628.46x = 637,609,707,189.95
  5. Step 5: Solve for x
    x = 637,609,707,189.95/913,628.46
  6. Step 6: Final answer
    x = 697,887.31

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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.