Home / 2,798,412.80-4,192,780.80-1,299,430.40

Finding the Fourth Proportional to 2,798,412.80, 4,192,780.80 and 1,299,430.40

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Solution

The fourth proportional to 2,798,412.80, 4,192,780.80 and 1,299,430.40 is: 1,946,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,412.80 : 4,192,780.80 = 1,299,430.40 : x
  2. Step 2: Convert to fraction form
    2,798,412.80/4,192,780.80 = 1,299,430.40/x
  3. Step 3: Cross multiply
    2,798,412.80x = 4,192,780.80 × 1,299,430.40
  4. Step 4: Simplify right side
    2,798,412.80x = 5,448,226,832,056.32
  5. Step 5: Solve for x
    x = 5,448,226,832,056.32/2,798,412.80
  6. Step 6: Final answer
    x = 1,946,898.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.