Home / 719,830.72-1,078,915.67-270,264.83

Finding the Fourth Proportional to 719,830.72, 1,078,915.67 and 270,264.83

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Solution

The fourth proportional to 719,830.72, 1,078,915.67 and 270,264.83 is: 405,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,830.72 : 1,078,915.67 = 270,264.83 : x
  2. Step 2: Convert to fraction form
    719,830.72/1,078,915.67 = 270,264.83/x
  3. Step 3: Cross multiply
    719,830.72x = 1,078,915.67 × 270,264.83
  4. Step 4: Simplify right side
    719,830.72x = 291,592,958,785.56
  5. Step 5: Solve for x
    x = 291,592,958,785.56/719,830.72
  6. Step 6: Final answer
    x = 405,085.46

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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.