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Finding the Fourth Proportional to 524,352.40, 785,945.40 and 287,864.80

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Solution

The fourth proportional to 524,352.40, 785,945.40 and 287,864.80 is: 431,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,352.40 : 785,945.40 = 287,864.80 : x
  2. Step 2: Convert to fraction form
    524,352.40/785,945.40 = 287,864.80/x
  3. Step 3: Cross multiply
    524,352.40x = 785,945.40 × 287,864.80
  4. Step 4: Simplify right side
    524,352.40x = 226,246,015,381.92
  5. Step 5: Solve for x
    x = 226,246,015,381.92/524,352.40
  6. Step 6: Final answer
    x = 431,477.03

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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.