Home / 1,316,303.31-1,974,455.00-319,031.31

Finding the Fourth Proportional to 1,316,303.31, 1,974,455.00 and 319,031.31

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Solution

The fourth proportional to 1,316,303.31, 1,974,455.00 and 319,031.31 is: 478,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,303.31 : 1,974,455.00 = 319,031.31 : x
  2. Step 2: Convert to fraction form
    1,316,303.31/1,974,455.00 = 319,031.31/x
  3. Step 3: Cross multiply
    1,316,303.31x = 1,974,455.00 × 319,031.31
  4. Step 4: Simplify right side
    1,316,303.31x = 629,912,970,919.77
  5. Step 5: Solve for x
    x = 629,912,970,919.77/1,316,303.31
  6. Step 6: Final answer
    x = 478,546.98

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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.