Home / 1,316,286.63-1,974,429.81-319,014.63

Finding the Fourth Proportional to 1,316,286.63, 1,974,429.81 and 319,014.63

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Solution

The fourth proportional to 1,316,286.63, 1,974,429.81 and 319,014.63 is: 478,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,286.63 : 1,974,429.81 = 319,014.63 : x
  2. Step 2: Convert to fraction form
    1,316,286.63/1,974,429.81 = 319,014.63/x
  3. Step 3: Cross multiply
    1,316,286.63x = 1,974,429.81 × 319,014.63
  4. Step 4: Simplify right side
    1,316,286.63x = 629,871,995,298.12
  5. Step 5: Solve for x
    x = 629,871,995,298.12/1,316,286.63
  6. Step 6: Final answer
    x = 478,521.91

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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.