Home / 1,213,000.70-1,819,501.05-740,608.70

Finding the Fourth Proportional to 1,213,000.70, 1,819,501.05 and 740,608.70

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Solution

The fourth proportional to 1,213,000.70, 1,819,501.05 and 740,608.70 is: 1,110,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,000.70 : 1,819,501.05 = 740,608.70 : x
  2. Step 2: Convert to fraction form
    1,213,000.70/1,819,501.05 = 740,608.70/x
  3. Step 3: Cross multiply
    1,213,000.70x = 1,819,501.05 × 740,608.70
  4. Step 4: Simplify right side
    1,213,000.70x = 1,347,538,307,289.14
  5. Step 5: Solve for x
    x = 1,347,538,307,289.14/1,213,000.70
  6. Step 6: Final answer
    x = 1,110,913.05

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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.