Home / 956,880-1,320,494.40-554,705.28

Finding the Fourth Proportional to 956,880, 1,320,494.40 and 554,705.28

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Solution

The fourth proportional to 956,880, 1,320,494.40 and 554,705.28 is: 765,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,880 : 1,320,494.40 = 554,705.28 : x
  2. Step 2: Convert to fraction form
    956,880/1,320,494.40 = 554,705.28/x
  3. Step 3: Cross multiply
    956,880x = 1,320,494.40 × 554,705.28
  4. Step 4: Simplify right side
    956,880x = 732,485,215,890.43
  5. Step 5: Solve for x
    x = 732,485,215,890.43/956,880
  6. Step 6: Final answer
    x = 765,493.29

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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.