Home / 1,415,139.78-2,123,041.73-404,276.25

Finding the Fourth Proportional to 1,415,139.78, 2,123,041.73 and 404,276.25

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Solution

The fourth proportional to 1,415,139.78, 2,123,041.73 and 404,276.25 is: 606,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,139.78 : 2,123,041.73 = 404,276.25 : x
  2. Step 2: Convert to fraction form
    1,415,139.78/2,123,041.73 = 404,276.25/x
  3. Step 3: Cross multiply
    1,415,139.78x = 2,123,041.73 × 404,276.25
  4. Step 4: Simplify right side
    1,415,139.78x = 858,295,347,176.53
  5. Step 5: Solve for x
    x = 858,295,347,176.53/1,415,139.78
  6. Step 6: Final answer
    x = 606,509.24

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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.