Home / 678,412.40-1,017,733.80-362,783.60

Finding the Fourth Proportional to 678,412.40, 1,017,733.80 and 362,783.60

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Solution

The fourth proportional to 678,412.40, 1,017,733.80 and 362,783.60 is: 544,237.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,412.40 : 1,017,733.80 = 362,783.60 : x
  2. Step 2: Convert to fraction form
    678,412.40/1,017,733.80 = 362,783.60/x
  3. Step 3: Cross multiply
    678,412.40x = 1,017,733.80 × 362,783.60
  4. Step 4: Simplify right side
    678,412.40x = 369,217,131,805.68
  5. Step 5: Solve for x
    x = 369,217,131,805.68/678,412.40
  6. Step 6: Final answer
    x = 544,237.00

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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.