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Finding the Fourth Proportional to 524,455.60, 787,072.20 and 346,903.60

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Solution

The fourth proportional to 524,455.60, 787,072.20 and 346,903.60 is: 520,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,455.60 : 787,072.20 = 346,903.60 : x
  2. Step 2: Convert to fraction form
    524,455.60/787,072.20 = 346,903.60/x
  3. Step 3: Cross multiply
    524,455.60x = 787,072.20 × 346,903.60
  4. Step 4: Simplify right side
    524,455.60x = 273,038,179,639.92
  5. Step 5: Solve for x
    x = 273,038,179,639.92/524,455.60
  6. Step 6: Final answer
    x = 520,612.57

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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.