Home / 820,856.40-1,232,041.49-416,332.52

Finding the Fourth Proportional to 820,856.40, 1,232,041.49 and 416,332.52

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Solution

The fourth proportional to 820,856.40, 1,232,041.49 and 416,332.52 is: 624,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,856.40 : 1,232,041.49 = 416,332.52 : x
  2. Step 2: Convert to fraction form
    820,856.40/1,232,041.49 = 416,332.52/x
  3. Step 3: Cross multiply
    820,856.40x = 1,232,041.49 × 416,332.52
  4. Step 4: Simplify right side
    820,856.40x = 512,938,939,317.09
  5. Step 5: Solve for x
    x = 512,938,939,317.09/820,856.40
  6. Step 6: Final answer
    x = 624,882.67

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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.