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Finding the Fourth Proportional to 803,870.94, 1,204,889.15 and 323,791.47

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Solution

The fourth proportional to 803,870.94, 1,204,889.15 and 323,791.47 is: 485,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,870.94 : 1,204,889.15 = 323,791.47 : x
  2. Step 2: Convert to fraction form
    803,870.94/1,204,889.15 = 323,791.47/x
  3. Step 3: Cross multiply
    803,870.94x = 1,204,889.15 × 323,791.47
  4. Step 4: Simplify right side
    803,870.94x = 390,132,829,875.03
  5. Step 5: Solve for x
    x = 390,132,829,875.03/803,870.94
  6. Step 6: Final answer
    x = 485,317.74

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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.