Home / 913,627.72-1,260,790.98-505,720.81

Finding the Fourth Proportional to 913,627.72, 1,260,790.98 and 505,720.81

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Solution

The fourth proportional to 913,627.72, 1,260,790.98 and 505,720.81 is: 697,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,627.72 : 1,260,790.98 = 505,720.81 : x
  2. Step 2: Convert to fraction form
    913,627.72/1,260,790.98 = 505,720.81/x
  3. Step 3: Cross multiply
    913,627.72x = 1,260,790.98 × 505,720.81
  4. Step 4: Simplify right side
    913,627.72x = 637,608,235,646.29
  5. Step 5: Solve for x
    x = 637,608,235,646.29/913,627.72
  6. Step 6: Final answer
    x = 697,886.26

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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.