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Finding the Fourth Proportional to 522,600.12, 783,900.54 and 345,065.40

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Solution

The fourth proportional to 522,600.12, 783,900.54 and 345,065.40 is: 517,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,600.12 : 783,900.54 = 345,065.40 : x
  2. Step 2: Convert to fraction form
    522,600.12/783,900.54 = 345,065.40/x
  3. Step 3: Cross multiply
    522,600.12x = 783,900.54 × 345,065.40
  4. Step 4: Simplify right side
    522,600.12x = 270,496,953,395.32
  5. Step 5: Solve for x
    x = 270,496,953,395.32/522,600.12
  6. Step 6: Final answer
    x = 517,598.34

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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.