Home / 1,292,398.96-1,783,424.64-719,424.40

Finding the Fourth Proportional to 1,292,398.96, 1,783,424.64 and 719,424.40

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Solution

The fourth proportional to 1,292,398.96, 1,783,424.64 and 719,424.40 is: 992,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,398.96 : 1,783,424.64 = 719,424.40 : x
  2. Step 2: Convert to fraction form
    1,292,398.96/1,783,424.64 = 719,424.40/x
  3. Step 3: Cross multiply
    1,292,398.96x = 1,783,424.64 × 719,424.40
  4. Step 4: Simplify right side
    1,292,398.96x = 1,283,039,201,577.22
  5. Step 5: Solve for x
    x = 1,283,039,201,577.22/1,292,398.96
  6. Step 6: Final answer
    x = 992,757.84

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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.