Home / 1,286,533.02-1,929,175.56-387,807.24

Finding the Fourth Proportional to 1,286,533.02, 1,929,175.56 and 387,807.24

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Solution

The fourth proportional to 1,286,533.02, 1,929,175.56 and 387,807.24 is: 581,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,533.02 : 1,929,175.56 = 387,807.24 : x
  2. Step 2: Convert to fraction form
    1,286,533.02/1,929,175.56 = 387,807.24/x
  3. Step 3: Cross multiply
    1,286,533.02x = 1,929,175.56 × 387,807.24
  4. Step 4: Simplify right side
    1,286,533.02x = 748,148,249,399.06
  5. Step 5: Solve for x
    x = 748,148,249,399.06/1,286,533.02
  6. Step 6: Final answer
    x = 581,522.77

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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.