Home / 739,128.64-1,019,630.80-477,393.92

Finding the Fourth Proportional to 739,128.64, 1,019,630.80 and 477,393.92

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Solution

The fourth proportional to 739,128.64, 1,019,630.80 and 477,393.92 is: 658,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,128.64 : 1,019,630.80 = 477,393.92 : x
  2. Step 2: Convert to fraction form
    739,128.64/1,019,630.80 = 477,393.92/x
  3. Step 3: Cross multiply
    739,128.64x = 1,019,630.80 × 477,393.92
  4. Step 4: Simplify right side
    739,128.64x = 486,765,544,564.74
  5. Step 5: Solve for x
    x = 486,765,544,564.74/739,128.64
  6. Step 6: Final answer
    x = 658,566.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.