Home / 1,291,500.50-1,782,287.01-710,790.47

Finding the Fourth Proportional to 1,291,500.50, 1,782,287.01 and 710,790.47

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Solution

The fourth proportional to 1,291,500.50, 1,782,287.01 and 710,790.47 is: 980,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,500.50 : 1,782,287.01 = 710,790.47 : x
  2. Step 2: Convert to fraction form
    1,291,500.50/1,782,287.01 = 710,790.47/x
  3. Step 3: Cross multiply
    1,291,500.50x = 1,782,287.01 × 710,790.47
  4. Step 4: Simplify right side
    1,291,500.50x = 1,266,832,621,512.79
  5. Step 5: Solve for x
    x = 1,266,832,621,512.79/1,291,500.50
  6. Step 6: Final answer
    x = 980,899.83

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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.