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Finding the Fourth Proportional to 670,713.96, 925,312.13 and 380,264.36

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Solution

The fourth proportional to 670,713.96, 925,312.13 and 380,264.36 is: 524,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,713.96 : 925,312.13 = 380,264.36 : x
  2. Step 2: Convert to fraction form
    670,713.96/925,312.13 = 380,264.36/x
  3. Step 3: Cross multiply
    670,713.96x = 925,312.13 × 380,264.36
  4. Step 4: Simplify right side
    670,713.96x = 351,863,225,326.65
  5. Step 5: Solve for x
    x = 351,863,225,326.65/670,713.96
  6. Step 6: Final answer
    x = 524,609.96

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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.