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Finding the Fourth Proportional to 570,595.00, 787,411.47 and 315,940.72

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Solution

The fourth proportional to 570,595.00, 787,411.47 and 315,940.72 is: 435,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,595.00 : 787,411.47 = 315,940.72 : x
  2. Step 2: Convert to fraction form
    570,595.00/787,411.47 = 315,940.72/x
  3. Step 3: Cross multiply
    570,595.00x = 787,411.47 × 315,940.72
  4. Step 4: Simplify right side
    570,595.00x = 248,775,344,799.53
  5. Step 5: Solve for x
    x = 248,775,344,799.53/570,595.00
  6. Step 6: Final answer
    x = 435,992.86

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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.