Home / 680,947.56-1,021,420.86-306,533.16

Finding the Fourth Proportional to 680,947.56, 1,021,420.86 and 306,533.16

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Solution

The fourth proportional to 680,947.56, 1,021,420.86 and 306,533.16 is: 459,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,947.56 : 1,021,420.86 = 306,533.16 : x
  2. Step 2: Convert to fraction form
    680,947.56/1,021,420.86 = 306,533.16/x
  3. Step 3: Cross multiply
    680,947.56x = 1,021,420.86 × 306,533.16
  4. Step 4: Simplify right side
    680,947.56x = 313,099,363,905.72
  5. Step 5: Solve for x
    x = 313,099,363,905.72/680,947.56
  6. Step 6: Final answer
    x = 459,799.52

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1.5x scale

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.