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Finding the Fourth Proportional to 1,406,894.22, 1,941,515.76 and 762,313.92

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Solution

The fourth proportional to 1,406,894.22, 1,941,515.76 and 762,313.92 is: 1,051,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,894.22 : 1,941,515.76 = 762,313.92 : x
  2. Step 2: Convert to fraction form
    1,406,894.22/1,941,515.76 = 762,313.92/x
  3. Step 3: Cross multiply
    1,406,894.22x = 1,941,515.76 × 762,313.92
  4. Step 4: Simplify right side
    1,406,894.22x = 1,480,044,489,747.38
  5. Step 5: Solve for x
    x = 1,480,044,489,747.38/1,406,894.22
  6. Step 6: Final answer
    x = 1,051,994.15

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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.