Home / 916,399.32-1,264,570.28-508,475.32

Finding the Fourth Proportional to 916,399.32, 1,264,570.28 and 508,475.32

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Solution

The fourth proportional to 916,399.32, 1,264,570.28 and 508,475.32 is: 701,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,399.32 : 1,264,570.28 = 508,475.32 : x
  2. Step 2: Convert to fraction form
    916,399.32/1,264,570.28 = 508,475.32/x
  3. Step 3: Cross multiply
    916,399.32x = 1,264,570.28 × 508,475.32
  4. Step 4: Simplify right side
    916,399.32x = 643,002,777,785.49
  5. Step 5: Solve for x
    x = 643,002,777,785.49/916,399.32
  6. Step 6: Final answer
    x = 701,662.22

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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.