Home / 877,772.46-1,317,038.99-309,559.59

Finding the Fourth Proportional to 877,772.46, 1,317,038.99 and 309,559.59

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Solution

The fourth proportional to 877,772.46, 1,317,038.99 and 309,559.59 is: 464,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,772.46 : 1,317,038.99 = 309,559.59 : x
  2. Step 2: Convert to fraction form
    877,772.46/1,317,038.99 = 309,559.59/x
  3. Step 3: Cross multiply
    877,772.46x = 1,317,038.99 × 309,559.59
  4. Step 4: Simplify right side
    877,772.46x = 407,702,049,758.41
  5. Step 5: Solve for x
    x = 407,702,049,758.41/877,772.46
  6. Step 6: Final answer
    x = 464,473.50

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Double scale
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Similar ratio
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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.