Home / 876,636.12-1,315,085.62-307,916.94

Finding the Fourth Proportional to 876,636.12, 1,315,085.62 and 307,916.94

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Solution

The fourth proportional to 876,636.12, 1,315,085.62 and 307,916.94 is: 461,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,636.12 : 1,315,085.62 = 307,916.94 : x
  2. Step 2: Convert to fraction form
    876,636.12/1,315,085.62 = 307,916.94/x
  3. Step 3: Cross multiply
    876,636.12x = 1,315,085.62 × 307,916.94
  4. Step 4: Simplify right side
    876,636.12x = 404,937,139,948.40
  5. Step 5: Solve for x
    x = 404,937,139,948.40/876,636.12
  6. Step 6: Final answer
    x = 461,921.58

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1.5x scale

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.