Home / 1,316,655-1,974,983.31-319,383

Finding the Fourth Proportional to 1,316,655, 1,974,983.31 and 319,383

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Solution

The fourth proportional to 1,316,655, 1,974,983.31 and 319,383 is: 479,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,655 : 1,974,983.31 = 319,383 : x
  2. Step 2: Convert to fraction form
    1,316,655/1,974,983.31 = 319,383/x
  3. Step 3: Cross multiply
    1,316,655x = 1,974,983.31 × 319,383
  4. Step 4: Simplify right side
    1,316,655x = 630,776,094,497.73
  5. Step 5: Solve for x
    x = 630,776,094,497.73/1,316,655
  6. Step 6: Final answer
    x = 479,074.70

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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.