Home / 1,007,834.36-1,390,321.52-644,967.32

Finding the Fourth Proportional to 1,007,834.36, 1,390,321.52 and 644,967.32

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Solution

The fourth proportional to 1,007,834.36, 1,390,321.52 and 644,967.32 is: 889,741.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,834.36 : 1,390,321.52 = 644,967.32 : x
  2. Step 2: Convert to fraction form
    1,007,834.36/1,390,321.52 = 644,967.32/x
  3. Step 3: Cross multiply
    1,007,834.36x = 1,390,321.52 × 644,967.32
  4. Step 4: Simplify right side
    1,007,834.36x = 896,711,944,692.73
  5. Step 5: Solve for x
    x = 896,711,944,692.73/1,007,834.36
  6. Step 6: Final answer
    x = 889,741.39

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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.