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Finding the Fourth Proportional to 582,443.51, 803,764.36 and 320,793.78

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Solution

The fourth proportional to 582,443.51, 803,764.36 and 320,793.78 is: 442,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,443.51 : 803,764.36 = 320,793.78 : x
  2. Step 2: Convert to fraction form
    582,443.51/803,764.36 = 320,793.78/x
  3. Step 3: Cross multiply
    582,443.51x = 803,764.36 × 320,793.78
  4. Step 4: Simplify right side
    582,443.51x = 257,842,610,688.79
  5. Step 5: Solve for x
    x = 257,842,610,688.79/582,443.51
  6. Step 6: Final answer
    x = 442,691.19

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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.