Home / 993,386.88-1,488,913.20-459,780.84

Finding the Fourth Proportional to 993,386.88, 1,488,913.20 and 459,780.84

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Solution

The fourth proportional to 993,386.88, 1,488,913.20 and 459,780.84 is: 689,131.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,386.88 : 1,488,913.20 = 459,780.84 : x
  2. Step 2: Convert to fraction form
    993,386.88/1,488,913.20 = 459,780.84/x
  3. Step 3: Cross multiply
    993,386.88x = 1,488,913.20 × 459,780.84
  4. Step 4: Simplify right side
    993,386.88x = 684,573,761,783.09
  5. Step 5: Solve for x
    x = 684,573,761,783.09/993,386.88
  6. Step 6: Final answer
    x = 689,131.07

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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.