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Finding the Fourth Proportional to 524,912.40, 787,368.60 and 145,832.40

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Solution

The fourth proportional to 524,912.40, 787,368.60 and 145,832.40 is: 218,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,912.40 : 787,368.60 = 145,832.40 : x
  2. Step 2: Convert to fraction form
    524,912.40/787,368.60 = 145,832.40/x
  3. Step 3: Cross multiply
    524,912.40x = 787,368.60 × 145,832.40
  4. Step 4: Simplify right side
    524,912.40x = 114,823,852,622.64
  5. Step 5: Solve for x
    x = 114,823,852,622.64/524,912.40
  6. Step 6: Final answer
    x = 218,748.60

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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.