Home / 738,123.80-1,107,185.70-559,664.60

Finding the Fourth Proportional to 738,123.80, 1,107,185.70 and 559,664.60

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Solution

The fourth proportional to 738,123.80, 1,107,185.70 and 559,664.60 is: 839,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,123.80 : 1,107,185.70 = 559,664.60 : x
  2. Step 2: Convert to fraction form
    738,123.80/1,107,185.70 = 559,664.60/x
  3. Step 3: Cross multiply
    738,123.80x = 1,107,185.70 × 559,664.60
  4. Step 4: Simplify right side
    738,123.80x = 619,652,641,916.22
  5. Step 5: Solve for x
    x = 619,652,641,916.22/738,123.80
  6. Step 6: Final answer
    x = 839,496.90

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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.