Home / 720,270.36-1,080,291.96-453,213.36

Finding the Fourth Proportional to 720,270.36, 1,080,291.96 and 453,213.36

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Solution

The fourth proportional to 720,270.36, 1,080,291.96 and 453,213.36 is: 679,748.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,270.36 : 1,080,291.96 = 453,213.36 : x
  2. Step 2: Convert to fraction form
    720,270.36/1,080,291.96 = 453,213.36/x
  3. Step 3: Cross multiply
    720,270.36x = 1,080,291.96 × 453,213.36
  4. Step 4: Simplify right side
    720,270.36x = 489,602,748,972.59
  5. Step 5: Solve for x
    x = 489,602,748,972.59/720,270.36
  6. Step 6: Final answer
    x = 679,748.57

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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.