Home / 1,421,204.15-1,961,287.39-776,651.51

Finding the Fourth Proportional to 1,421,204.15, 1,961,287.39 and 776,651.51

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Solution

The fourth proportional to 1,421,204.15, 1,961,287.39 and 776,651.51 is: 1,071,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,204.15 : 1,961,287.39 = 776,651.51 : x
  2. Step 2: Convert to fraction form
    1,421,204.15/1,961,287.39 = 776,651.51/x
  3. Step 3: Cross multiply
    1,421,204.15x = 1,961,287.39 × 776,651.51
  4. Step 4: Simplify right side
    1,421,204.15x = 1,523,236,818,861.49
  5. Step 5: Solve for x
    x = 1,523,236,818,861.49/1,421,204.15
  6. Step 6: Final answer
    x = 1,071,793.11

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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.