Home / 1,272,782.09-1,909,172.43-374,231.27

Finding the Fourth Proportional to 1,272,782.09, 1,909,172.43 and 374,231.27

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Solution

The fourth proportional to 1,272,782.09, 1,909,172.43 and 374,231.27 is: 561,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,782.09 : 1,909,172.43 = 374,231.27 : x
  2. Step 2: Convert to fraction form
    1,272,782.09/1,909,172.43 = 374,231.27/x
  3. Step 3: Cross multiply
    1,272,782.09x = 1,909,172.43 × 374,231.27
  4. Step 4: Simplify right side
    1,272,782.09x = 714,472,023,127.89
  5. Step 5: Solve for x
    x = 714,472,023,127.89/1,272,782.09
  6. Step 6: Final answer
    x = 561,346.70

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1.5x scale

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.