Home / 1,420,068.31-2,130,029.84-521,440.94

Finding the Fourth Proportional to 1,420,068.31, 2,130,029.84 and 521,440.94

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Solution

The fourth proportional to 1,420,068.31, 2,130,029.84 and 521,440.94 is: 782,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,068.31 : 2,130,029.84 = 521,440.94 : x
  2. Step 2: Convert to fraction form
    1,420,068.31/2,130,029.84 = 521,440.94/x
  3. Step 3: Cross multiply
    1,420,068.31x = 2,130,029.84 × 521,440.94
  4. Step 4: Simplify right side
    1,420,068.31x = 1,110,684,759,390.44
  5. Step 5: Solve for x
    x = 1,110,684,759,390.44/1,420,068.31
  6. Step 6: Final answer
    x = 782,134.74

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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.