Home / 1,316,385.38-1,974,578.06-319,113.38

Finding the Fourth Proportional to 1,316,385.38, 1,974,578.06 and 319,113.38

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Solution

The fourth proportional to 1,316,385.38, 1,974,578.06 and 319,113.38 is: 478,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,385.38 : 1,974,578.06 = 319,113.38 : x
  2. Step 2: Convert to fraction form
    1,316,385.38/1,974,578.06 = 319,113.38/x
  3. Step 3: Cross multiply
    1,316,385.38x = 1,974,578.06 × 319,113.38
  4. Step 4: Simplify right side
    1,316,385.38x = 630,114,269,725.34
  5. Step 5: Solve for x
    x = 630,114,269,725.34/1,316,385.38
  6. Step 6: Final answer
    x = 478,670.06

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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.