Home / 1,291,501.50-1,782,288.39-710,791.47

Finding the Fourth Proportional to 1,291,501.50, 1,782,288.39 and 710,791.47

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Solution

The fourth proportional to 1,291,501.50, 1,782,288.39 and 710,791.47 is: 980,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,501.50 : 1,782,288.39 = 710,791.47 : x
  2. Step 2: Convert to fraction form
    1,291,501.50/1,782,288.39 = 710,791.47/x
  3. Step 3: Cross multiply
    1,291,501.50x = 1,782,288.39 × 710,791.47
  4. Step 4: Simplify right side
    1,291,501.50x = 1,266,835,384,692.03
  5. Step 5: Solve for x
    x = 1,266,835,384,692.03/1,291,501.50
  6. Step 6: Final answer
    x = 980,901.21

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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.