Home / 890,769.55-1,229,263.62-482,870.13

Finding the Fourth Proportional to 890,769.55, 1,229,263.62 and 482,870.13

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Solution

The fourth proportional to 890,769.55, 1,229,263.62 and 482,870.13 is: 666,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,769.55 : 1,229,263.62 = 482,870.13 : x
  2. Step 2: Convert to fraction form
    890,769.55/1,229,263.62 = 482,870.13/x
  3. Step 3: Cross multiply
    890,769.55x = 1,229,263.62 × 482,870.13
  4. Step 4: Simplify right side
    890,769.55x = 593,574,683,993.67
  5. Step 5: Solve for x
    x = 593,574,683,993.67/890,769.55
  6. Step 6: Final answer
    x = 666,361.67

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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.