Home / 977,455.40-1,465,491.90-445,231.40

Finding the Fourth Proportional to 977,455.40, 1,465,491.90 and 445,231.40

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Solution

The fourth proportional to 977,455.40, 1,465,491.90 and 445,231.40 is: 667,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,455.40 : 1,465,491.90 = 445,231.40 : x
  2. Step 2: Convert to fraction form
    977,455.40/1,465,491.90 = 445,231.40/x
  3. Step 3: Cross multiply
    977,455.40x = 1,465,491.90 × 445,231.40
  4. Step 4: Simplify right side
    977,455.40x = 652,483,010,325.66
  5. Step 5: Solve for x
    x = 652,483,010,325.66/977,455.40
  6. Step 6: Final answer
    x = 667,532.26

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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.