Home / 687,564.59-1,033,028.24-649,325.70

Finding the Fourth Proportional to 687,564.59, 1,033,028.24 and 649,325.70

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Solution

The fourth proportional to 687,564.59, 1,033,028.24 and 649,325.70 is: 975,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,564.59 : 1,033,028.24 = 649,325.70 : x
  2. Step 2: Convert to fraction form
    687,564.59/1,033,028.24 = 649,325.70/x
  3. Step 3: Cross multiply
    687,564.59x = 1,033,028.24 × 649,325.70
  4. Step 4: Simplify right side
    687,564.59x = 670,771,781,811.14
  5. Step 5: Solve for x
    x = 670,771,781,811.14/687,564.59
  6. Step 6: Final answer
    x = 975,576.40

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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.