Home / 383,928.86-575,445-288,853.69

Finding the Fourth Proportional to 383,928.86, 575,445 and 288,853.69

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Solution

The fourth proportional to 383,928.86, 575,445 and 288,853.69 is: 432,943.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,928.86 : 575,445 = 288,853.69 : x
  2. Step 2: Convert to fraction form
    383,928.86/575,445 = 288,853.69/x
  3. Step 3: Cross multiply
    383,928.86x = 575,445 × 288,853.69
  4. Step 4: Simplify right side
    383,928.86x = 166,219,411,642.05
  5. Step 5: Solve for x
    x = 166,219,411,642.05/383,928.86
  6. Step 6: Final answer
    x = 432,943.26

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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.