Home / 864,113.45-1,192,475.81-482,140.23

Finding the Fourth Proportional to 864,113.45, 1,192,475.81 and 482,140.23

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Solution

The fourth proportional to 864,113.45, 1,192,475.81 and 482,140.23 is: 665,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,113.45 : 1,192,475.81 = 482,140.23 : x
  2. Step 2: Convert to fraction form
    864,113.45/1,192,475.81 = 482,140.23/x
  3. Step 3: Cross multiply
    864,113.45x = 1,192,475.81 × 482,140.23
  4. Step 4: Simplify right side
    864,113.45x = 574,940,558,036.40
  5. Step 5: Solve for x
    x = 574,940,558,036.40/864,113.45
  6. Step 6: Final answer
    x = 665,353.10

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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.