Home / 1,292,135.58-1,938,600.54-661,492.26

Finding the Fourth Proportional to 1,292,135.58, 1,938,600.54 and 661,492.26

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Solution

The fourth proportional to 1,292,135.58, 1,938,600.54 and 661,492.26 is: 992,441.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,135.58 : 1,938,600.54 = 661,492.26 : x
  2. Step 2: Convert to fraction form
    1,292,135.58/1,938,600.54 = 661,492.26/x
  3. Step 3: Cross multiply
    1,292,135.58x = 1,938,600.54 × 661,492.26
  4. Step 4: Simplify right side
    1,292,135.58x = 1,282,369,252,441.82
  5. Step 5: Solve for x
    x = 1,282,369,252,441.82/1,292,135.58
  6. Step 6: Final answer
    x = 992,441.72

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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.