Home / 1,265,615.20-1,898,422.80-424,194.40

Finding the Fourth Proportional to 1,265,615.20, 1,898,422.80 and 424,194.40

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Solution

The fourth proportional to 1,265,615.20, 1,898,422.80 and 424,194.40 is: 636,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,615.20 : 1,898,422.80 = 424,194.40 : x
  2. Step 2: Convert to fraction form
    1,265,615.20/1,898,422.80 = 424,194.40/x
  3. Step 3: Cross multiply
    1,265,615.20x = 1,898,422.80 × 424,194.40
  4. Step 4: Simplify right side
    1,265,615.20x = 805,300,320,592.32
  5. Step 5: Solve for x
    x = 805,300,320,592.32/1,265,615.20
  6. Step 6: Final answer
    x = 636,291.60

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Similar ratio
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1.5x scale

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.