Home / 1,123,072.70-1,683,820.02-393,417.42

Finding the Fourth Proportional to 1,123,072.70, 1,683,820.02 and 393,417.42

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Solution

The fourth proportional to 1,123,072.70, 1,683,820.02 and 393,417.42 is: 589,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,072.70 : 1,683,820.02 = 393,417.42 : x
  2. Step 2: Convert to fraction form
    1,123,072.70/1,683,820.02 = 393,417.42/x
  3. Step 3: Cross multiply
    1,123,072.70x = 1,683,820.02 × 393,417.42
  4. Step 4: Simplify right side
    1,123,072.70x = 662,444,128,012.75
  5. Step 5: Solve for x
    x = 662,444,128,012.75/1,123,072.70
  6. Step 6: Final answer
    x = 589,849.73

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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.