Home / 839,123.70-1,258,685.55-484,829.70

Finding the Fourth Proportional to 839,123.70, 1,258,685.55 and 484,829.70

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Solution

The fourth proportional to 839,123.70, 1,258,685.55 and 484,829.70 is: 727,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,123.70 : 1,258,685.55 = 484,829.70 : x
  2. Step 2: Convert to fraction form
    839,123.70/1,258,685.55 = 484,829.70/x
  3. Step 3: Cross multiply
    839,123.70x = 1,258,685.55 × 484,829.70
  4. Step 4: Simplify right side
    839,123.70x = 610,248,137,600.84
  5. Step 5: Solve for x
    x = 610,248,137,600.84/839,123.70
  6. Step 6: Final answer
    x = 727,244.55

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Double scale
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Similar ratio
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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.