Home / 687,795.84-1,029,823.88-403,066.67

Finding the Fourth Proportional to 687,795.84, 1,029,823.88 and 403,066.67

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Solution

The fourth proportional to 687,795.84, 1,029,823.88 and 403,066.67 is: 603,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,795.84 : 1,029,823.88 = 403,066.67 : x
  2. Step 2: Convert to fraction form
    687,795.84/1,029,823.88 = 403,066.67/x
  3. Step 3: Cross multiply
    687,795.84x = 1,029,823.88 × 403,066.67
  4. Step 4: Simplify right side
    687,795.84x = 415,087,674,833.63
  5. Step 5: Solve for x
    x = 415,087,674,833.63/687,795.84
  6. Step 6: Final answer
    x = 603,504.20

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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.