Home / 913,627.22-1,260,790.29-505,720.31

Finding the Fourth Proportional to 913,627.22, 1,260,790.29 and 505,720.31

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Solution

The fourth proportional to 913,627.22, 1,260,790.29 and 505,720.31 is: 697,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,627.22 : 1,260,790.29 = 505,720.31 : x
  2. Step 2: Convert to fraction form
    913,627.22/1,260,790.29 = 505,720.31/x
  3. Step 3: Cross multiply
    913,627.22x = 1,260,790.29 × 505,720.31
  4. Step 4: Simplify right side
    913,627.22x = 637,607,256,303.79
  5. Step 5: Solve for x
    x = 637,607,256,303.79/913,627.22
  6. Step 6: Final answer
    x = 697,885.57

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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.