Home / 874,360.80-1,311,541.20-283,384.80

Finding the Fourth Proportional to 874,360.80, 1,311,541.20 and 283,384.80

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Solution

The fourth proportional to 874,360.80, 1,311,541.20 and 283,384.80 is: 425,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,360.80 : 1,311,541.20 = 283,384.80 : x
  2. Step 2: Convert to fraction form
    874,360.80/1,311,541.20 = 283,384.80/x
  3. Step 3: Cross multiply
    874,360.80x = 1,311,541.20 × 283,384.80
  4. Step 4: Simplify right side
    874,360.80x = 371,670,840,653.76
  5. Step 5: Solve for x
    x = 371,670,840,653.76/874,360.80
  6. Step 6: Final answer
    x = 425,077.20

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Double scale
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Similar ratio
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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.