Home / 841,531.79-1,262,308.84-280,566.47

Finding the Fourth Proportional to 841,531.79, 1,262,308.84 and 280,566.47

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Solution

The fourth proportional to 841,531.79, 1,262,308.84 and 280,566.47 is: 420,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,531.79 : 1,262,308.84 = 280,566.47 : x
  2. Step 2: Convert to fraction form
    841,531.79/1,262,308.84 = 280,566.47/x
  3. Step 3: Cross multiply
    841,531.79x = 1,262,308.84 × 280,566.47
  4. Step 4: Simplify right side
    841,531.79x = 354,161,528,275.63
  5. Step 5: Solve for x
    x = 354,161,528,275.63/841,531.79
  6. Step 6: Final answer
    x = 420,853.42

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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.