Home / 1,349,262.12-1,861,983.54-776,290.80

Finding the Fourth Proportional to 1,349,262.12, 1,861,983.54 and 776,290.80

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Solution

The fourth proportional to 1,349,262.12, 1,861,983.54 and 776,290.80 is: 1,071,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,262.12 : 1,861,983.54 = 776,290.80 : x
  2. Step 2: Convert to fraction form
    1,349,262.12/1,861,983.54 = 776,290.80/x
  3. Step 3: Cross multiply
    1,349,262.12x = 1,861,983.54 × 776,290.80
  4. Step 4: Simplify right side
    1,349,262.12x = 1,445,440,691,853.43
  5. Step 5: Solve for x
    x = 1,445,440,691,853.43/1,349,262.12
  6. Step 6: Final answer
    x = 1,071,282.35

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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.