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Finding the Fourth Proportional to 472,729.58, 652,370.98 and 257,870.60

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Solution

The fourth proportional to 472,729.58, 652,370.98 and 257,870.60 is: 355,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,729.58 : 652,370.98 = 257,870.60 : x
  2. Step 2: Convert to fraction form
    472,729.58/652,370.98 = 257,870.60/x
  3. Step 3: Cross multiply
    472,729.58x = 652,370.98 × 257,870.60
  4. Step 4: Simplify right side
    472,729.58x = 168,227,296,035.19
  5. Step 5: Solve for x
    x = 168,227,296,035.19/472,729.58
  6. Step 6: Final answer
    x = 355,863.70

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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.