Home / 1,447,470.40-1,997,472.72-802,904.80

Finding the Fourth Proportional to 1,447,470.40, 1,997,472.72 and 802,904.80

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Solution

The fourth proportional to 1,447,470.40, 1,997,472.72 and 802,904.80 is: 1,107,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,470.40 : 1,997,472.72 = 802,904.80 : x
  2. Step 2: Convert to fraction form
    1,447,470.40/1,997,472.72 = 802,904.80/x
  3. Step 3: Cross multiply
    1,447,470.40x = 1,997,472.72 × 802,904.80
  4. Step 4: Simplify right side
    1,447,470.40x = 1,603,780,434,757.06
  5. Step 5: Solve for x
    x = 1,603,780,434,757.06/1,447,470.40
  6. Step 6: Final answer
    x = 1,107,988.42

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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.