Home / 984,815.20-1,477,271.40-512,423.20

Finding the Fourth Proportional to 984,815.20, 1,477,271.40 and 512,423.20

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Solution

The fourth proportional to 984,815.20, 1,477,271.40 and 512,423.20 is: 768,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,815.20 : 1,477,271.40 = 512,423.20 : x
  2. Step 2: Convert to fraction form
    984,815.20/1,477,271.40 = 512,423.20/x
  3. Step 3: Cross multiply
    984,815.20x = 1,477,271.40 × 512,423.20
  4. Step 4: Simplify right side
    984,815.20x = 756,988,138,056.48
  5. Step 5: Solve for x
    x = 756,988,138,056.48/984,815.20
  6. Step 6: Final answer
    x = 768,660.09

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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.