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Finding the Fourth Proportional to 524,751.40, 787,515.90 and 384,783.40

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Solution

The fourth proportional to 524,751.40, 787,515.90 and 384,783.40 is: 577,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,751.40 : 787,515.90 = 384,783.40 : x
  2. Step 2: Convert to fraction form
    524,751.40/787,515.90 = 384,783.40/x
  3. Step 3: Cross multiply
    524,751.40x = 787,515.90 × 384,783.40
  4. Step 4: Simplify right side
    524,751.40x = 303,023,045,556.06
  5. Step 5: Solve for x
    x = 303,023,045,556.06/524,751.40
  6. Step 6: Final answer
    x = 577,460.19

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1.5x scale

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.