Home / 912,890.46-1,369,366.88-313,846.46

Finding the Fourth Proportional to 912,890.46, 1,369,366.88 and 313,846.46

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Solution

The fourth proportional to 912,890.46, 1,369,366.88 and 313,846.46 is: 470,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,890.46 : 1,369,366.88 = 313,846.46 : x
  2. Step 2: Convert to fraction form
    912,890.46/1,369,366.88 = 313,846.46/x
  3. Step 3: Cross multiply
    912,890.46x = 1,369,366.88 × 313,846.46
  4. Step 4: Simplify right side
    912,890.46x = 429,770,939,313.18
  5. Step 5: Solve for x
    x = 429,770,939,313.18/912,890.46
  6. Step 6: Final answer
    x = 470,780.40

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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.