Home / 1,316,436-1,974,660.48-319,164

Finding the Fourth Proportional to 1,316,436, 1,974,660.48 and 319,164

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Solution

The fourth proportional to 1,316,436, 1,974,660.48 and 319,164 is: 478,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,436 : 1,974,660.48 = 319,164 : x
  2. Step 2: Convert to fraction form
    1,316,436/1,974,660.48 = 319,164/x
  3. Step 3: Cross multiply
    1,316,436x = 1,974,660.48 × 319,164
  4. Step 4: Simplify right side
    1,316,436x = 630,240,537,438.72
  5. Step 5: Solve for x
    x = 630,240,537,438.72/1,316,436
  6. Step 6: Final answer
    x = 478,747.57

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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.