Home / 463,629.64-639,583.12-302,411.56

Finding the Fourth Proportional to 463,629.64, 639,583.12 and 302,411.56

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Solution

The fourth proportional to 463,629.64, 639,583.12 and 302,411.56 is: 417,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,629.64 : 639,583.12 = 302,411.56 : x
  2. Step 2: Convert to fraction form
    463,629.64/639,583.12 = 302,411.56/x
  3. Step 3: Cross multiply
    463,629.64x = 639,583.12 × 302,411.56
  4. Step 4: Simplify right side
    463,629.64x = 193,417,329,068.87
  5. Step 5: Solve for x
    x = 193,417,329,068.87/463,629.64
  6. Step 6: Final answer
    x = 417,180.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.