Home / 1,239,990.40-1,860,158.40-530,012.80

Finding the Fourth Proportional to 1,239,990.40, 1,860,158.40 and 530,012.80

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Solution

The fourth proportional to 1,239,990.40, 1,860,158.40 and 530,012.80 is: 795,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,990.40 : 1,860,158.40 = 530,012.80 : x
  2. Step 2: Convert to fraction form
    1,239,990.40/1,860,158.40 = 530,012.80/x
  3. Step 3: Cross multiply
    1,239,990.40x = 1,860,158.40 × 530,012.80
  4. Step 4: Simplify right side
    1,239,990.40x = 985,907,762,027.52
  5. Step 5: Solve for x
    x = 985,907,762,027.52/1,239,990.40
  6. Step 6: Final answer
    x = 795,093.06

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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.