Home / 1,319,711.32-1,979,549.70-322,447.96

Finding the Fourth Proportional to 1,319,711.32, 1,979,549.70 and 322,447.96

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Solution

The fourth proportional to 1,319,711.32, 1,979,549.70 and 322,447.96 is: 483,667.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,711.32 : 1,979,549.70 = 322,447.96 : x
  2. Step 2: Convert to fraction form
    1,319,711.32/1,979,549.70 = 322,447.96/x
  3. Step 3: Cross multiply
    1,319,711.32x = 1,979,549.70 × 322,447.96
  4. Step 4: Simplify right side
    1,319,711.32x = 638,301,762,483.61
  5. Step 5: Solve for x
    x = 638,301,762,483.61/1,319,711.32
  6. Step 6: Final answer
    x = 483,667.72

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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.