Home / 1,443,923.61-1,991,988.93-870,645.30

Finding the Fourth Proportional to 1,443,923.61, 1,991,988.93 and 870,645.30

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Solution

The fourth proportional to 1,443,923.61, 1,991,988.93 and 870,645.30 is: 1,201,113.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,923.61 : 1,991,988.93 = 870,645.30 : x
  2. Step 2: Convert to fraction form
    1,443,923.61/1,991,988.93 = 870,645.30/x
  3. Step 3: Cross multiply
    1,443,923.61x = 1,991,988.93 × 870,645.30
  4. Step 4: Simplify right side
    1,443,923.61x = 1,734,315,799,556.53
  5. Step 5: Solve for x
    x = 1,734,315,799,556.53/1,443,923.61
  6. Step 6: Final answer
    x = 1,201,113.26

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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.