Home / 1,284,142.02-1,926,166.31-385,560.40

Finding the Fourth Proportional to 1,284,142.02, 1,926,166.31 and 385,560.40

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Solution

The fourth proportional to 1,284,142.02, 1,926,166.31 and 385,560.40 is: 578,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,142.02 : 1,926,166.31 = 385,560.40 : x
  2. Step 2: Convert to fraction form
    1,284,142.02/1,926,166.31 = 385,560.40/x
  3. Step 3: Cross multiply
    1,284,142.02x = 1,926,166.31 × 385,560.40
  4. Step 4: Simplify right side
    1,284,142.02x = 742,653,452,950.12
  5. Step 5: Solve for x
    x = 742,653,452,950.12/1,284,142.02
  6. Step 6: Final answer
    x = 578,326.57

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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.