Home / 1,286,535.02-1,929,178.56-387,809.24

Finding the Fourth Proportional to 1,286,535.02, 1,929,178.56 and 387,809.24

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Solution

The fourth proportional to 1,286,535.02, 1,929,178.56 and 387,809.24 is: 581,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,535.02 : 1,929,178.56 = 387,809.24 : x
  2. Step 2: Convert to fraction form
    1,286,535.02/1,929,178.56 = 387,809.24/x
  3. Step 3: Cross multiply
    1,286,535.02x = 1,929,178.56 × 387,809.24
  4. Step 4: Simplify right side
    1,286,535.02x = 748,153,271,177.89
  5. Step 5: Solve for x
    x = 748,153,271,177.89/1,286,535.02
  6. Step 6: Final answer
    x = 581,525.77

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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.