Home / 985,612.85-1,477,853.39-385,871.84

Finding the Fourth Proportional to 985,612.85, 1,477,853.39 and 385,871.84

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Solution

The fourth proportional to 985,612.85, 1,477,853.39 and 385,871.84 is: 578,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,612.85 : 1,477,853.39 = 385,871.84 : x
  2. Step 2: Convert to fraction form
    985,612.85/1,477,853.39 = 385,871.84/x
  3. Step 3: Cross multiply
    985,612.85x = 1,477,853.39 × 385,871.84
  4. Step 4: Simplify right side
    985,612.85x = 570,262,011,508.85
  5. Step 5: Solve for x
    x = 570,262,011,508.85/985,612.85
  6. Step 6: Final answer
    x = 578,586.22

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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.