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Finding the Fourth Proportional to 670,313.32, 925,012.93 and 379,951.65

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Solution

The fourth proportional to 670,313.32, 925,012.93 and 379,951.65 is: 524,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,313.32 : 925,012.93 = 379,951.65 : x
  2. Step 2: Convert to fraction form
    670,313.32/925,012.93 = 379,951.65/x
  3. Step 3: Cross multiply
    670,313.32x = 925,012.93 × 379,951.65
  4. Step 4: Simplify right side
    670,313.32x = 351,460,189,024.84
  5. Step 5: Solve for x
    x = 351,460,189,024.84/670,313.32
  6. Step 6: Final answer
    x = 524,322.25

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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.