Home / 1,429,364.79-1,972,266.08-809,165.78

Finding the Fourth Proportional to 1,429,364.79, 1,972,266.08 and 809,165.78

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Solution

The fourth proportional to 1,429,364.79, 1,972,266.08 and 809,165.78 is: 1,116,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,364.79 : 1,972,266.08 = 809,165.78 : x
  2. Step 2: Convert to fraction form
    1,429,364.79/1,972,266.08 = 809,165.78/x
  3. Step 3: Cross multiply
    1,429,364.79x = 1,972,266.08 × 809,165.78
  4. Step 4: Simplify right side
    1,429,364.79x = 1,595,890,213,152.33
  5. Step 5: Solve for x
    x = 1,595,890,213,152.33/1,429,364.79
  6. Step 6: Final answer
    x = 1,116,503.10

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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.