Home / 1,426,345.38-2,139,616.52-415,475.74

Finding the Fourth Proportional to 1,426,345.38, 2,139,616.52 and 415,475.74

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Solution

The fourth proportional to 1,426,345.38, 2,139,616.52 and 415,475.74 is: 623,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,345.38 : 2,139,616.52 = 415,475.74 : x
  2. Step 2: Convert to fraction form
    1,426,345.38/2,139,616.52 = 415,475.74/x
  3. Step 3: Cross multiply
    1,426,345.38x = 2,139,616.52 × 415,475.74
  4. Step 4: Simplify right side
    1,426,345.38x = 888,958,756,963.23
  5. Step 5: Solve for x
    x = 888,958,756,963.23/1,426,345.38
  6. Step 6: Final answer
    x = 623,242.29

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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.