Home / 1,423,010-1,964,220.36-1,021,768.40

Finding the Fourth Proportional to 1,423,010, 1,964,220.36 and 1,021,768.40

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Solution

The fourth proportional to 1,423,010, 1,964,220.36 and 1,021,768.40 is: 1,410,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,010 : 1,964,220.36 = 1,021,768.40 : x
  2. Step 2: Convert to fraction form
    1,423,010/1,964,220.36 = 1,021,768.40/x
  3. Step 3: Cross multiply
    1,423,010x = 1,964,220.36 × 1,021,768.40
  4. Step 4: Simplify right side
    1,423,010x = 2,006,978,294,484.62
  5. Step 5: Solve for x
    x = 2,006,978,294,484.62/1,423,010
  6. Step 6: Final answer
    x = 1,410,375.40

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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.