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Finding the Fourth Proportional to 582,539.70, 803,742.39 and 375,720.60

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Solution

The fourth proportional to 582,539.70, 803,742.39 and 375,720.60 is: 518,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,539.70 : 803,742.39 = 375,720.60 : x
  2. Step 2: Convert to fraction form
    582,539.70/803,742.39 = 375,720.60/x
  3. Step 3: Cross multiply
    582,539.70x = 803,742.39 × 375,720.60
  4. Step 4: Simplify right side
    582,539.70x = 301,982,573,016.23
  5. Step 5: Solve for x
    x = 301,982,573,016.23/582,539.70
  6. Step 6: Final answer
    x = 518,389.69

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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.