Home / 1,319,346.52-1,980,299.51-636,713.77

Finding the Fourth Proportional to 1,319,346.52, 1,980,299.51 and 636,713.77

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Solution

The fourth proportional to 1,319,346.52, 1,980,299.51 and 636,713.77 is: 955,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,346.52 : 1,980,299.51 = 636,713.77 : x
  2. Step 2: Convert to fraction form
    1,319,346.52/1,980,299.51 = 636,713.77/x
  3. Step 3: Cross multiply
    1,319,346.52x = 1,980,299.51 × 636,713.77
  4. Step 4: Simplify right side
    1,319,346.52x = 1,260,883,966,741.25
  5. Step 5: Solve for x
    x = 1,260,883,966,741.25/1,319,346.52
  6. Step 6: Final answer
    x = 955,688.25

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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.