Home / 3,280,666.70-4,921,000.05-916,762.70

Finding the Fourth Proportional to 3,280,666.70, 4,921,000.05 and 916,762.70

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Solution

The fourth proportional to 3,280,666.70, 4,921,000.05 and 916,762.70 is: 1,375,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,666.70 : 4,921,000.05 = 916,762.70 : x
  2. Step 2: Convert to fraction form
    3,280,666.70/4,921,000.05 = 916,762.70/x
  3. Step 3: Cross multiply
    3,280,666.70x = 4,921,000.05 × 916,762.70
  4. Step 4: Simplify right side
    3,280,666.70x = 4,511,389,292,538.14
  5. Step 5: Solve for x
    x = 4,511,389,292,538.14/3,280,666.70
  6. Step 6: Final answer
    x = 1,375,144.05

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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.