Home / 1,018,328.40-1,526,907.20-419,702.76

Finding the Fourth Proportional to 1,018,328.40, 1,526,907.20 and 419,702.76

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Solution

The fourth proportional to 1,018,328.40, 1,526,907.20 and 419,702.76 is: 629,312.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,328.40 : 1,526,907.20 = 419,702.76 : x
  2. Step 2: Convert to fraction form
    1,018,328.40/1,526,907.20 = 419,702.76/x
  3. Step 3: Cross multiply
    1,018,328.40x = 1,526,907.20 × 419,702.76
  4. Step 4: Simplify right side
    1,018,328.40x = 640,847,166,103.87
  5. Step 5: Solve for x
    x = 640,847,166,103.87/1,018,328.40
  6. Step 6: Final answer
    x = 629,312.87

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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.