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Finding the Fourth Proportional to 524,002.40, 786,586.80 and 287,806.40

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Solution

The fourth proportional to 524,002.40, 786,586.80 and 287,806.40 is: 432,029.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,002.40 : 786,586.80 = 287,806.40 : x
  2. Step 2: Convert to fraction form
    524,002.40/786,586.80 = 287,806.40/x
  3. Step 3: Cross multiply
    524,002.40x = 786,586.80 × 287,806.40
  4. Step 4: Simplify right side
    524,002.40x = 226,384,715,195.52
  5. Step 5: Solve for x
    x = 226,384,715,195.52/524,002.40
  6. Step 6: Final answer
    x = 432,029.92

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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.