Home / 985,349.89-1,359,829.44-555,620.79

Finding the Fourth Proportional to 985,349.89, 1,359,829.44 and 555,620.79

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Solution

The fourth proportional to 985,349.89, 1,359,829.44 and 555,620.79 is: 766,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,349.89 : 1,359,829.44 = 555,620.79 : x
  2. Step 2: Convert to fraction form
    985,349.89/1,359,829.44 = 555,620.79/x
  3. Step 3: Cross multiply
    985,349.89x = 1,359,829.44 × 555,620.79
  4. Step 4: Simplify right side
    985,349.89x = 755,549,510,555.58
  5. Step 5: Solve for x
    x = 755,549,510,555.58/985,349.89
  6. Step 6: Final answer
    x = 766,782.97

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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.