Home / 1,008,926.80-1,391,531.64-646,384.36

Finding the Fourth Proportional to 1,008,926.80, 1,391,531.64 and 646,384.36

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Solution

The fourth proportional to 1,008,926.80, 1,391,531.64 and 646,384.36 is: 891,505.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,926.80 : 1,391,531.64 = 646,384.36 : x
  2. Step 2: Convert to fraction form
    1,008,926.80/1,391,531.64 = 646,384.36/x
  3. Step 3: Cross multiply
    1,008,926.80x = 1,391,531.64 × 646,384.36
  4. Step 4: Simplify right side
    1,008,926.80x = 899,464,288,541.15
  5. Step 5: Solve for x
    x = 899,464,288,541.15/1,008,926.80
  6. Step 6: Final answer
    x = 891,505.99

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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.