Home / 913,325.67-1,260,391.88-505,455.64

Finding the Fourth Proportional to 913,325.67, 1,260,391.88 and 505,455.64

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Solution

The fourth proportional to 913,325.67, 1,260,391.88 and 505,455.64 is: 697,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,325.67 : 1,260,391.88 = 505,455.64 : x
  2. Step 2: Convert to fraction form
    913,325.67/1,260,391.88 = 505,455.64/x
  3. Step 3: Cross multiply
    913,325.67x = 1,260,391.88 × 505,455.64
  4. Step 4: Simplify right side
    913,325.67x = 637,072,186,563.51
  5. Step 5: Solve for x
    x = 637,072,186,563.51/913,325.67
  6. Step 6: Final answer
    x = 697,530.14

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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.