Home / 920,995.12-1,271,012.46-513,096.72

Finding the Fourth Proportional to 920,995.12, 1,271,012.46 and 513,096.72

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Solution

The fourth proportional to 920,995.12, 1,271,012.46 and 513,096.72 is: 708,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,995.12 : 1,271,012.46 = 513,096.72 : x
  2. Step 2: Convert to fraction form
    920,995.12/1,271,012.46 = 513,096.72/x
  3. Step 3: Cross multiply
    920,995.12x = 1,271,012.46 × 513,096.72
  4. Step 4: Simplify right side
    920,995.12x = 652,152,324,305.13
  5. Step 5: Solve for x
    x = 652,152,324,305.13/920,995.12
  6. Step 6: Final answer
    x = 708,095.31

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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.