Home / 1,239,976.54-1,860,653.72-671,349.25

Finding the Fourth Proportional to 1,239,976.54, 1,860,653.72 and 671,349.25

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Solution

The fourth proportional to 1,239,976.54, 1,860,653.72 and 671,349.25 is: 1,007,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,976.54 : 1,860,653.72 = 671,349.25 : x
  2. Step 2: Convert to fraction form
    1,239,976.54/1,860,653.72 = 671,349.25/x
  3. Step 3: Cross multiply
    1,239,976.54x = 1,860,653.72 × 671,349.25
  4. Step 4: Simplify right side
    1,239,976.54x = 1,249,148,479,431.71
  5. Step 5: Solve for x
    x = 1,249,148,479,431.71/1,239,976.54
  6. Step 6: Final answer
    x = 1,007,396.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.