Home / 984,821.70-1,477,281.15-512,429.70

Finding the Fourth Proportional to 984,821.70, 1,477,281.15 and 512,429.70

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Solution

The fourth proportional to 984,821.70, 1,477,281.15 and 512,429.70 is: 768,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,821.70 : 1,477,281.15 = 512,429.70 : x
  2. Step 2: Convert to fraction form
    984,821.70/1,477,281.15 = 512,429.70/x
  3. Step 3: Cross multiply
    984,821.70x = 1,477,281.15 × 512,429.70
  4. Step 4: Simplify right side
    984,821.70x = 757,002,736,510.16
  5. Step 5: Solve for x
    x = 757,002,736,510.16/984,821.70
  6. Step 6: Final answer
    x = 768,669.84

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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.