Home / 1,019,313.78-1,528,979.85-309,341.94

Finding the Fourth Proportional to 1,019,313.78, 1,528,979.85 and 309,341.94

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Solution

The fourth proportional to 1,019,313.78, 1,528,979.85 and 309,341.94 is: 464,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,313.78 : 1,528,979.85 = 309,341.94 : x
  2. Step 2: Convert to fraction form
    1,019,313.78/1,528,979.85 = 309,341.94/x
  3. Step 3: Cross multiply
    1,019,313.78x = 1,528,979.85 × 309,341.94
  4. Step 4: Simplify right side
    1,019,313.78x = 472,977,593,019.91
  5. Step 5: Solve for x
    x = 472,977,593,019.91/1,019,313.78
  6. Step 6: Final answer
    x = 464,015.70

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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.