Home / 678,984.41-1,018,697.70-323,952.50

Finding the Fourth Proportional to 678,984.41, 1,018,697.70 and 323,952.50

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Solution

The fourth proportional to 678,984.41, 1,018,697.70 and 323,952.50 is: 486,034.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,984.41 : 1,018,697.70 = 323,952.50 : x
  2. Step 2: Convert to fraction form
    678,984.41/1,018,697.70 = 323,952.50/x
  3. Step 3: Cross multiply
    678,984.41x = 1,018,697.70 × 323,952.50
  4. Step 4: Simplify right side
    678,984.41x = 330,009,666,659.25
  5. Step 5: Solve for x
    x = 330,009,666,659.25/678,984.41
  6. Step 6: Final answer
    x = 486,034.23

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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.