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Finding the Fourth Proportional to 524,712.80, 788,818.80 and 447,730.40

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Solution

The fourth proportional to 524,712.80, 788,818.80 and 447,730.40 is: 673,088.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,712.80 : 788,818.80 = 447,730.40 : x
  2. Step 2: Convert to fraction form
    524,712.80/788,818.80 = 447,730.40/x
  3. Step 3: Cross multiply
    524,712.80x = 788,818.80 × 447,730.40
  4. Step 4: Simplify right side
    524,712.80x = 353,178,156,851.52
  5. Step 5: Solve for x
    x = 353,178,156,851.52/524,712.80
  6. Step 6: Final answer
    x = 673,088.51

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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.