Home / 1,434,976.47-1,980,267.30-790,396.65

Finding the Fourth Proportional to 1,434,976.47, 1,980,267.30 and 790,396.65

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Solution

The fourth proportional to 1,434,976.47, 1,980,267.30 and 790,396.65 is: 1,090,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,976.47 : 1,980,267.30 = 790,396.65 : x
  2. Step 2: Convert to fraction form
    1,434,976.47/1,980,267.30 = 790,396.65/x
  3. Step 3: Cross multiply
    1,434,976.47x = 1,980,267.30 × 790,396.65
  4. Step 4: Simplify right side
    1,434,976.47x = 1,565,196,640,024.55
  5. Step 5: Solve for x
    x = 1,565,196,640,024.55/1,434,976.47
  6. Step 6: Final answer
    x = 1,090,747.25

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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.