Home / 993,011.70-1,488,351.15-459,405.57

Finding the Fourth Proportional to 993,011.70, 1,488,351.15 and 459,405.57

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Solution

The fourth proportional to 993,011.70, 1,488,351.15 and 459,405.57 is: 688,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,011.70 : 1,488,351.15 = 459,405.57 : x
  2. Step 2: Convert to fraction form
    993,011.70/1,488,351.15 = 459,405.57/x
  3. Step 3: Cross multiply
    993,011.70x = 1,488,351.15 × 459,405.57
  4. Step 4: Simplify right side
    993,011.70x = 683,756,808,425.91
  5. Step 5: Solve for x
    x = 683,756,808,425.91/993,011.70
  6. Step 6: Final answer
    x = 688,568.73

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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.