Home / 879,089.20-1,318,633.80-879,089.20

Finding the Fourth Proportional to 879,089.20, 1,318,633.80 and 879,089.20

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Solution

The fourth proportional to 879,089.20, 1,318,633.80 and 879,089.20 is: 1,318,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,089.20 : 1,318,633.80 = 879,089.20 : x
  2. Step 2: Convert to fraction form
    879,089.20/1,318,633.80 = 879,089.20/x
  3. Step 3: Cross multiply
    879,089.20x = 1,318,633.80 × 879,089.20
  4. Step 4: Simplify right side
    879,089.20x = 1,159,196,732,334.96
  5. Step 5: Solve for x
    x = 1,159,196,732,334.96/879,089.20
  6. Step 6: Final answer
    x = 1,318,633.80

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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.