Home / 697,115.76-1,045,214.76-459,734.64

Finding the Fourth Proportional to 697,115.76, 1,045,214.76 and 459,734.64

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Solution

The fourth proportional to 697,115.76, 1,045,214.76 and 459,734.64 is: 689,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,115.76 : 1,045,214.76 = 459,734.64 : x
  2. Step 2: Convert to fraction form
    697,115.76/1,045,214.76 = 459,734.64/x
  3. Step 3: Cross multiply
    697,115.76x = 1,045,214.76 × 459,734.64
  4. Step 4: Simplify right side
    697,115.76x = 480,521,431,411.29
  5. Step 5: Solve for x
    x = 480,521,431,411.29/697,115.76
  6. Step 6: Final answer
    x = 689,299.34

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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.