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Finding the Fourth Proportional to 524,542.79, 723,870.12 and 309,696.67

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Solution

The fourth proportional to 524,542.79, 723,870.12 and 309,696.67 is: 427,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,542.79 : 723,870.12 = 309,696.67 : x
  2. Step 2: Convert to fraction form
    524,542.79/723,870.12 = 309,696.67/x
  3. Step 3: Cross multiply
    524,542.79x = 723,870.12 × 309,696.67
  4. Step 4: Simplify right side
    524,542.79x = 224,180,161,928.89
  5. Step 5: Solve for x
    x = 224,180,161,928.89/524,542.79
  6. Step 6: Final answer
    x = 427,382.03

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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.