Home / 1,565,924.43-2,160,938.97-921,386.37

Finding the Fourth Proportional to 1,565,924.43, 2,160,938.97 and 921,386.37

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Solution

The fourth proportional to 1,565,924.43, 2,160,938.97 and 921,386.37 is: 1,271,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,924.43 : 2,160,938.97 = 921,386.37 : x
  2. Step 2: Convert to fraction form
    1,565,924.43/2,160,938.97 = 921,386.37/x
  3. Step 3: Cross multiply
    1,565,924.43x = 2,160,938.97 × 921,386.37
  4. Step 4: Simplify right side
    1,565,924.43x = 1,991,059,713,359.84
  5. Step 5: Solve for x
    x = 1,991,059,713,359.84/1,565,924.43
  6. Step 6: Final answer
    x = 1,271,491.57

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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.