Home / 856,130.77-1,284,208.71-406,897.48

Finding the Fourth Proportional to 856,130.77, 1,284,208.71 and 406,897.48

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Solution

The fourth proportional to 856,130.77, 1,284,208.71 and 406,897.48 is: 610,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,130.77 : 1,284,208.71 = 406,897.48 : x
  2. Step 2: Convert to fraction form
    856,130.77/1,284,208.71 = 406,897.48/x
  3. Step 3: Cross multiply
    856,130.77x = 1,284,208.71 × 406,897.48
  4. Step 4: Simplify right side
    856,130.77x = 522,541,287,893.05
  5. Step 5: Solve for x
    x = 522,541,287,893.05/856,130.77
  6. Step 6: Final answer
    x = 610,352.19

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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.