Home / 1,329,411.40-1,993,886.70-487,529.80

Finding the Fourth Proportional to 1,329,411.40, 1,993,886.70 and 487,529.80

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Solution

The fourth proportional to 1,329,411.40, 1,993,886.70 and 487,529.80 is: 731,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,411.40 : 1,993,886.70 = 487,529.80 : x
  2. Step 2: Convert to fraction form
    1,329,411.40/1,993,886.70 = 487,529.80/x
  3. Step 3: Cross multiply
    1,329,411.40x = 1,993,886.70 × 487,529.80
  4. Step 4: Simplify right side
    1,329,411.40x = 972,079,184,073.66
  5. Step 5: Solve for x
    x = 972,079,184,073.66/1,329,411.40
  6. Step 6: Final answer
    x = 731,210.21

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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.