Home / 947,853.16-1,421,779.74-316,766.98

Finding the Fourth Proportional to 947,853.16, 1,421,779.74 and 316,766.98

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Solution

The fourth proportional to 947,853.16, 1,421,779.74 and 316,766.98 is: 475,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,853.16 : 1,421,779.74 = 316,766.98 : x
  2. Step 2: Convert to fraction form
    947,853.16/1,421,779.74 = 316,766.98/x
  3. Step 3: Cross multiply
    947,853.16x = 1,421,779.74 × 316,766.98
  4. Step 4: Simplify right side
    947,853.16x = 450,372,874,464.99
  5. Step 5: Solve for x
    x = 450,372,874,464.99/947,853.16
  6. Step 6: Final answer
    x = 475,150.47

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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.