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Finding the Fourth Proportional to 570,316.02, 787,211.28 and 328,760.04

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Solution

The fourth proportional to 570,316.02, 787,211.28 and 328,760.04 is: 453,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,316.02 : 787,211.28 = 328,760.04 : x
  2. Step 2: Convert to fraction form
    570,316.02/787,211.28 = 328,760.04/x
  3. Step 3: Cross multiply
    570,316.02x = 787,211.28 × 328,760.04
  4. Step 4: Simplify right side
    570,316.02x = 258,803,611,901.25
  5. Step 5: Solve for x
    x = 258,803,611,901.25/570,316.02
  6. Step 6: Final answer
    x = 453,789.83

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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.