Home / 1,584,421.40-2,377,331.94-639,637.40

Finding the Fourth Proportional to 1,584,421.40, 2,377,331.94 and 639,637.40

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Solution

The fourth proportional to 1,584,421.40, 2,377,331.94 and 639,637.40 is: 959,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584,421.40 : 2,377,331.94 = 639,637.40 : x
  2. Step 2: Convert to fraction form
    1,584,421.40/2,377,331.94 = 639,637.40/x
  3. Step 3: Cross multiply
    1,584,421.40x = 2,377,331.94 × 639,637.40
  4. Step 4: Simplify right side
    1,584,421.40x = 1,520,630,421,038.56
  5. Step 5: Solve for x
    x = 1,520,630,421,038.56/1,584,421.40
  6. Step 6: Final answer
    x = 959,738.63

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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.