Home / 572,426.64-789,909.18-317,757.72

Finding the Fourth Proportional to 572,426.64, 789,909.18 and 317,757.72

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Solution

The fourth proportional to 572,426.64, 789,909.18 and 317,757.72 is: 438,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,426.64 : 789,909.18 = 317,757.72 : x
  2. Step 2: Convert to fraction form
    572,426.64/789,909.18 = 317,757.72/x
  3. Step 3: Cross multiply
    572,426.64x = 789,909.18 × 317,757.72
  4. Step 4: Simplify right side
    572,426.64x = 250,999,740,043.87
  5. Step 5: Solve for x
    x = 250,999,740,043.87/572,426.64
  6. Step 6: Final answer
    x = 438,483.68

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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.