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Finding the Fourth Proportional to 608,391.64, 839,326.76 and 350,206.81

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Solution

The fourth proportional to 608,391.64, 839,326.76 and 350,206.81 is: 483,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,391.64 : 839,326.76 = 350,206.81 : x
  2. Step 2: Convert to fraction form
    608,391.64/839,326.76 = 350,206.81/x
  3. Step 3: Cross multiply
    608,391.64x = 839,326.76 × 350,206.81
  4. Step 4: Simplify right side
    608,391.64x = 293,937,947,167.24
  5. Step 5: Solve for x
    x = 293,937,947,167.24/608,391.64
  6. Step 6: Final answer
    x = 483,139.36

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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.