Home / 920,529.63-1,270,295.46-512,648.67

Finding the Fourth Proportional to 920,529.63, 1,270,295.46 and 512,648.67

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Solution

The fourth proportional to 920,529.63, 1,270,295.46 and 512,648.67 is: 707,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,529.63 : 1,270,295.46 = 512,648.67 : x
  2. Step 2: Convert to fraction form
    920,529.63/1,270,295.46 = 512,648.67/x
  3. Step 3: Cross multiply
    920,529.63x = 1,270,295.46 × 512,648.67
  4. Step 4: Simplify right side
    920,529.63x = 651,215,278,076.04
  5. Step 5: Solve for x
    x = 651,215,278,076.04/920,529.63
  6. Step 6: Final answer
    x = 707,435.43

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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.