Home / 1,316,378.75-1,974,568.13-319,106.75

Finding the Fourth Proportional to 1,316,378.75, 1,974,568.13 and 319,106.75

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Solution

The fourth proportional to 1,316,378.75, 1,974,568.13 and 319,106.75 is: 478,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,378.75 : 1,974,568.13 = 319,106.75 : x
  2. Step 2: Convert to fraction form
    1,316,378.75/1,974,568.13 = 319,106.75/x
  3. Step 3: Cross multiply
    1,316,378.75x = 1,974,568.13 × 319,106.75
  4. Step 4: Simplify right side
    1,316,378.75x = 630,098,017,022.34
  5. Step 5: Solve for x
    x = 630,098,017,022.34/1,316,378.75
  6. Step 6: Final answer
    x = 478,660.13

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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.