Home / 734,743.92-1,013,931.72-408,039.60

Finding the Fourth Proportional to 734,743.92, 1,013,931.72 and 408,039.60

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Solution

The fourth proportional to 734,743.92, 1,013,931.72 and 408,039.60 is: 563,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,743.92 : 1,013,931.72 = 408,039.60 : x
  2. Step 2: Convert to fraction form
    734,743.92/1,013,931.72 = 408,039.60/x
  3. Step 3: Cross multiply
    734,743.92x = 1,013,931.72 × 408,039.60
  4. Step 4: Simplify right side
    734,743.92x = 413,724,293,456.11
  5. Step 5: Solve for x
    x = 413,724,293,456.11/734,743.92
  6. Step 6: Final answer
    x = 563,086.38

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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.