Home / 1,283,898.85-1,926,168.10-385,357.21

Finding the Fourth Proportional to 1,283,898.85, 1,926,168.10 and 385,357.21

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Solution

The fourth proportional to 1,283,898.85, 1,926,168.10 and 385,357.21 is: 578,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,898.85 : 1,926,168.10 = 385,357.21 : x
  2. Step 2: Convert to fraction form
    1,283,898.85/1,926,168.10 = 385,357.21/x
  3. Step 3: Cross multiply
    1,283,898.85x = 1,926,168.10 × 385,357.21
  4. Step 4: Simplify right side
    1,283,898.85x = 742,262,767,895.64
  5. Step 5: Solve for x
    x = 742,262,767,895.64/1,283,898.85
  6. Step 6: Final answer
    x = 578,131.81

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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.