Home / 685,730.40-1,028,595.60-446,581.95

Finding the Fourth Proportional to 685,730.40, 1,028,595.60 and 446,581.95

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Solution

The fourth proportional to 685,730.40, 1,028,595.60 and 446,581.95 is: 669,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,730.40 : 1,028,595.60 = 446,581.95 : x
  2. Step 2: Convert to fraction form
    685,730.40/1,028,595.60 = 446,581.95/x
  3. Step 3: Cross multiply
    685,730.40x = 1,028,595.60 × 446,581.95
  4. Step 4: Simplify right side
    685,730.40x = 459,352,228,809.42
  5. Step 5: Solve for x
    x = 459,352,228,809.42/685,730.40
  6. Step 6: Final answer
    x = 669,872.93

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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.