Home / 755,776.81-1,042,894.83-465,342.31

Finding the Fourth Proportional to 755,776.81, 1,042,894.83 and 465,342.31

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Solution

The fourth proportional to 755,776.81, 1,042,894.83 and 465,342.31 is: 642,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,776.81 : 1,042,894.83 = 465,342.31 : x
  2. Step 2: Convert to fraction form
    755,776.81/1,042,894.83 = 465,342.31/x
  3. Step 3: Cross multiply
    755,776.81x = 1,042,894.83 × 465,342.31
  4. Step 4: Simplify right side
    755,776.81x = 485,303,089,279.26
  5. Step 5: Solve for x
    x = 485,303,089,279.26/755,776.81
  6. Step 6: Final answer
    x = 642,124.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.