Home / 1,308,729.30-1,963,223.55-455,669.70

Finding the Fourth Proportional to 1,308,729.30, 1,963,223.55 and 455,669.70

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Solution

The fourth proportional to 1,308,729.30, 1,963,223.55 and 455,669.70 is: 683,549.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,729.30 : 1,963,223.55 = 455,669.70 : x
  2. Step 2: Convert to fraction form
    1,308,729.30/1,963,223.55 = 455,669.70/x
  3. Step 3: Cross multiply
    1,308,729.30x = 1,963,223.55 × 455,669.70
  4. Step 4: Simplify right side
    1,308,729.30x = 894,581,486,061.44
  5. Step 5: Solve for x
    x = 894,581,486,061.44/1,308,729.30
  6. Step 6: Final answer
    x = 683,549.67

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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.