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Finding the Fourth Proportional to 660,574.63, 911,597.66 and 358,768.63

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Solution

The fourth proportional to 660,574.63, 911,597.66 and 358,768.63 is: 495,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,574.63 : 911,597.66 = 358,768.63 : x
  2. Step 2: Convert to fraction form
    660,574.63/911,597.66 = 358,768.63/x
  3. Step 3: Cross multiply
    660,574.63x = 911,597.66 × 358,768.63
  4. Step 4: Simplify right side
    660,574.63x = 327,052,643,589.41
  5. Step 5: Solve for x
    x = 327,052,643,589.41/660,574.63
  6. Step 6: Final answer
    x = 495,103.25

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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.