Home / 1,284,006.57-1,926,329.72-385,464.86

Finding the Fourth Proportional to 1,284,006.57, 1,926,329.72 and 385,464.86

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Solution

The fourth proportional to 1,284,006.57, 1,926,329.72 and 385,464.86 is: 578,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,006.57 : 1,926,329.72 = 385,464.86 : x
  2. Step 2: Convert to fraction form
    1,284,006.57/1,926,329.72 = 385,464.86/x
  3. Step 3: Cross multiply
    1,284,006.57x = 1,926,329.72 × 385,464.86
  4. Step 4: Simplify right side
    1,284,006.57x = 742,532,411,498.40
  5. Step 5: Solve for x
    x = 742,532,411,498.40/1,284,006.57
  6. Step 6: Final answer
    x = 578,293.31

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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.