Home / 814,342.38-1,221,124.70-477,485.60

Finding the Fourth Proportional to 814,342.38, 1,221,124.70 and 477,485.60

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Solution

The fourth proportional to 814,342.38, 1,221,124.70 and 477,485.60 is: 716,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,342.38 : 1,221,124.70 = 477,485.60 : x
  2. Step 2: Convert to fraction form
    814,342.38/1,221,124.70 = 477,485.60/x
  3. Step 3: Cross multiply
    814,342.38x = 1,221,124.70 × 477,485.60
  4. Step 4: Simplify right side
    814,342.38x = 583,069,460,054.32
  5. Step 5: Solve for x
    x = 583,069,460,054.32/814,342.38
  6. Step 6: Final answer
    x = 716,000.39

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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.