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Finding the Fourth Proportional to 369,078.80, 553,618.20 and 362,080.40

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Solution

The fourth proportional to 369,078.80, 553,618.20 and 362,080.40 is: 543,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,078.80 : 553,618.20 = 362,080.40 : x
  2. Step 2: Convert to fraction form
    369,078.80/553,618.20 = 362,080.40/x
  3. Step 3: Cross multiply
    369,078.80x = 553,618.20 × 362,080.40
  4. Step 4: Simplify right side
    369,078.80x = 200,454,299,303.28
  5. Step 5: Solve for x
    x = 200,454,299,303.28/369,078.80
  6. Step 6: Final answer
    x = 543,120.60

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1.5x scale

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.