Home / 680,699.08-1,021,048.86-306,284.68

Finding the Fourth Proportional to 680,699.08, 1,021,048.86 and 306,284.68

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Solution

The fourth proportional to 680,699.08, 1,021,048.86 and 306,284.68 is: 459,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,699.08 : 1,021,048.86 = 306,284.68 : x
  2. Step 2: Convert to fraction form
    680,699.08/1,021,048.86 = 306,284.68/x
  3. Step 3: Cross multiply
    680,699.08x = 1,021,048.86 × 306,284.68
  4. Step 4: Simplify right side
    680,699.08x = 312,731,623,349.47
  5. Step 5: Solve for x
    x = 312,731,623,349.47/680,699.08
  6. Step 6: Final answer
    x = 459,427.13

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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.