Home / 913,379.03-1,260,431.96-505,498.07

Finding the Fourth Proportional to 913,379.03, 1,260,431.96 and 505,498.07

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Solution

The fourth proportional to 913,379.03, 1,260,431.96 and 505,498.07 is: 697,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,379.03 : 1,260,431.96 = 505,498.07 : x
  2. Step 2: Convert to fraction form
    913,379.03/1,260,431.96 = 505,498.07/x
  3. Step 3: Cross multiply
    913,379.03x = 1,260,431.96 × 505,498.07
  4. Step 4: Simplify right side
    913,379.03x = 637,145,920,945.12
  5. Step 5: Solve for x
    x = 637,145,920,945.12/913,379.03
  6. Step 6: Final answer
    x = 697,570.12

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1.5x scale

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.