Home / 916,762.36-1,265,108.34-508,843.12

Finding the Fourth Proportional to 916,762.36, 1,265,108.34 and 508,843.12

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Solution

The fourth proportional to 916,762.36, 1,265,108.34 and 508,843.12 is: 702,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,762.36 : 1,265,108.34 = 508,843.12 : x
  2. Step 2: Convert to fraction form
    916,762.36/1,265,108.34 = 508,843.12/x
  3. Step 3: Cross multiply
    916,762.36x = 1,265,108.34 × 508,843.12
  4. Step 4: Simplify right side
    916,762.36x = 643,741,674,863.62
  5. Step 5: Solve for x
    x = 643,741,674,863.62/916,762.36
  6. Step 6: Final answer
    x = 702,190.34

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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.