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Finding the Fourth Proportional to 982,880.80, 1,475,098.80 and 384,128.80

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Solution

The fourth proportional to 982,880.80, 1,475,098.80 and 384,128.80 is: 576,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,880.80 : 1,475,098.80 = 384,128.80 : x
  2. Step 2: Convert to fraction form
    982,880.80/1,475,098.80 = 384,128.80/x
  3. Step 3: Cross multiply
    982,880.80x = 1,475,098.80 × 384,128.80
  4. Step 4: Simplify right side
    982,880.80x = 566,627,931,925.44
  5. Step 5: Solve for x
    x = 566,627,931,925.44/982,880.80
  6. Step 6: Final answer
    x = 576,497.10

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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.