Home / 912,443.40-1,368,636.60-379,950.96

Finding the Fourth Proportional to 912,443.40, 1,368,636.60 and 379,950.96

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Solution

The fourth proportional to 912,443.40, 1,368,636.60 and 379,950.96 is: 569,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,443.40 : 1,368,636.60 = 379,950.96 : x
  2. Step 2: Convert to fraction form
    912,443.40/1,368,636.60 = 379,950.96/x
  3. Step 3: Cross multiply
    912,443.40x = 1,368,636.60 × 379,950.96
  4. Step 4: Simplify right side
    912,443.40x = 520,014,790,061.14
  5. Step 5: Solve for x
    x = 520,014,790,061.14/912,443.40
  6. Step 6: Final answer
    x = 569,914.57

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1.5x scale

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.