Home / 1,316,378.25-1,974,567.38-319,106.25

Finding the Fourth Proportional to 1,316,378.25, 1,974,567.38 and 319,106.25

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Solution

The fourth proportional to 1,316,378.25, 1,974,567.38 and 319,106.25 is: 478,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,378.25 : 1,974,567.38 = 319,106.25 : x
  2. Step 2: Convert to fraction form
    1,316,378.25/1,974,567.38 = 319,106.25/x
  3. Step 3: Cross multiply
    1,316,378.25x = 1,974,567.38 × 319,106.25
  4. Step 4: Simplify right side
    1,316,378.25x = 630,096,790,408.59
  5. Step 5: Solve for x
    x = 630,096,790,408.59/1,316,378.25
  6. Step 6: Final answer
    x = 478,659.38

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Double scale
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Similar ratio
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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.