Home / 670,749.45-925,633.56-384,270.67

Finding the Fourth Proportional to 670,749.45, 925,633.56 and 384,270.67

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Solution

The fourth proportional to 670,749.45, 925,633.56 and 384,270.67 is: 530,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,749.45 : 925,633.56 = 384,270.67 : x
  2. Step 2: Convert to fraction form
    670,749.45/925,633.56 = 384,270.67/x
  3. Step 3: Cross multiply
    670,749.45x = 925,633.56 × 384,270.67
  4. Step 4: Simplify right side
    670,749.45x = 355,693,828,275.69
  5. Step 5: Solve for x
    x = 355,693,828,275.69/670,749.45
  6. Step 6: Final answer
    x = 530,293.13

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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.