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Finding the Fourth Proportional to 656,810.70, 984,438.45 and 277,730.70

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Solution

The fourth proportional to 656,810.70, 984,438.45 and 277,730.70 is: 416,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,810.70 : 984,438.45 = 277,730.70 : x
  2. Step 2: Convert to fraction form
    656,810.70/984,438.45 = 277,730.70/x
  3. Step 3: Cross multiply
    656,810.70x = 984,438.45 × 277,730.70
  4. Step 4: Simplify right side
    656,810.70x = 273,408,779,825.42
  5. Step 5: Solve for x
    x = 273,408,779,825.42/656,810.70
  6. Step 6: Final answer
    x = 416,267.24

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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.