Home / 656,387.30-899,907.27-644,430.48

Finding the Fourth Proportional to 656,387.30, 899,907.27 and 644,430.48

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Solution

The fourth proportional to 656,387.30, 899,907.27 and 644,430.48 is: 883,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,387.30 : 899,907.27 = 644,430.48 : x
  2. Step 2: Convert to fraction form
    656,387.30/899,907.27 = 644,430.48/x
  3. Step 3: Cross multiply
    656,387.30x = 899,907.27 × 644,430.48
  4. Step 4: Simplify right side
    656,387.30x = 579,927,673,961.59
  5. Step 5: Solve for x
    x = 579,927,673,961.59/656,387.30
  6. Step 6: Final answer
    x = 883,514.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.