Home / 1,284,200.74-1,926,317.25-385,590.16

Finding the Fourth Proportional to 1,284,200.74, 1,926,317.25 and 385,590.16

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Solution

The fourth proportional to 1,284,200.74, 1,926,317.25 and 385,590.16 is: 578,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,200.74 : 1,926,317.25 = 385,590.16 : x
  2. Step 2: Convert to fraction form
    1,284,200.74/1,926,317.25 = 385,590.16/x
  3. Step 3: Cross multiply
    1,284,200.74x = 1,926,317.25 × 385,590.16
  4. Step 4: Simplify right side
    1,284,200.74x = 742,768,976,638.26
  5. Step 5: Solve for x
    x = 742,768,976,638.26/1,284,200.74
  6. Step 6: Final answer
    x = 578,390.09

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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.