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Finding the Fourth Proportional to 660,546.59, 911,549.13 and 358,740.59

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Solution

The fourth proportional to 660,546.59, 911,549.13 and 358,740.59 is: 495,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,546.59 : 911,549.13 = 358,740.59 : x
  2. Step 2: Convert to fraction form
    660,546.59/911,549.13 = 358,740.59/x
  3. Step 3: Cross multiply
    660,546.59x = 911,549.13 × 358,740.59
  4. Step 4: Simplify right side
    660,546.59x = 327,009,668,152.44
  5. Step 5: Solve for x
    x = 327,009,668,152.44/660,546.59
  6. Step 6: Final answer
    x = 495,059.21

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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.