Home / 1,008,931.64-1,391,538.34-646,389.22

Finding the Fourth Proportional to 1,008,931.64, 1,391,538.34 and 646,389.22

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Solution

The fourth proportional to 1,008,931.64, 1,391,538.34 and 646,389.22 is: 891,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,931.64 : 1,391,538.34 = 646,389.22 : x
  2. Step 2: Convert to fraction form
    1,008,931.64/1,391,538.34 = 646,389.22/x
  3. Step 3: Cross multiply
    1,008,931.64x = 1,391,538.34 × 646,389.22
  4. Step 4: Simplify right side
    1,008,931.64x = 899,475,382,192.70
  5. Step 5: Solve for x
    x = 899,475,382,192.70/1,008,931.64
  6. Step 6: Final answer
    x = 891,512.71

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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.