Home / 1,207,123.40-1,810,965.53-354,160.59

Finding the Fourth Proportional to 1,207,123.40, 1,810,965.53 and 354,160.59

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Solution

The fourth proportional to 1,207,123.40, 1,810,965.53 and 354,160.59 is: 531,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,123.40 : 1,810,965.53 = 354,160.59 : x
  2. Step 2: Convert to fraction form
    1,207,123.40/1,810,965.53 = 354,160.59/x
  3. Step 3: Cross multiply
    1,207,123.40x = 1,810,965.53 × 354,160.59
  4. Step 4: Simplify right side
    1,207,123.40x = 641,372,620,574.46
  5. Step 5: Solve for x
    x = 641,372,620,574.46/1,207,123.40
  6. Step 6: Final answer
    x = 531,323.16

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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.