Home / 572,423.56-789,913.64-317,758.36

Finding the Fourth Proportional to 572,423.56, 789,913.64 and 317,758.36

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Solution

The fourth proportional to 572,423.56, 789,913.64 and 317,758.36 is: 438,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,423.56 : 789,913.64 = 317,758.36 : x
  2. Step 2: Convert to fraction form
    572,423.56/789,913.64 = 317,758.36/x
  3. Step 3: Cross multiply
    572,423.56x = 789,913.64 × 317,758.36
  4. Step 4: Simplify right side
    572,423.56x = 251,001,662,788.03
  5. Step 5: Solve for x
    x = 251,001,662,788.03/572,423.56
  6. Step 6: Final answer
    x = 438,489.40

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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.