Home / 1,238,538.80-1,858,153.80-607,473.20

Finding the Fourth Proportional to 1,238,538.80, 1,858,153.80 and 607,473.20

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Solution

The fourth proportional to 1,238,538.80, 1,858,153.80 and 607,473.20 is: 911,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,538.80 : 1,858,153.80 = 607,473.20 : x
  2. Step 2: Convert to fraction form
    1,238,538.80/1,858,153.80 = 607,473.20/x
  3. Step 3: Cross multiply
    1,238,538.80x = 1,858,153.80 × 607,473.20
  4. Step 4: Simplify right side
    1,238,538.80x = 1,128,778,634,978.16
  5. Step 5: Solve for x
    x = 1,128,778,634,978.16/1,238,538.80
  6. Step 6: Final answer
    x = 911,379.31

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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.