Home / 859,590.90-1,289,969.55-559,340.10

Finding the Fourth Proportional to 859,590.90, 1,289,969.55 and 559,340.10

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Solution

The fourth proportional to 859,590.90, 1,289,969.55 and 559,340.10 is: 839,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,590.90 : 1,289,969.55 = 559,340.10 : x
  2. Step 2: Convert to fraction form
    859,590.90/1,289,969.55 = 559,340.10/x
  3. Step 3: Cross multiply
    859,590.90x = 1,289,969.55 × 559,340.10
  4. Step 4: Simplify right side
    859,590.90x = 721,531,697,093.96
  5. Step 5: Solve for x
    x = 721,531,697,093.96/859,590.90
  6. Step 6: Final answer
    x = 839,389.64

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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.