Home / 628,566.68-867,468.30-356,681.24

Finding the Fourth Proportional to 628,566.68, 867,468.30 and 356,681.24

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Solution

The fourth proportional to 628,566.68, 867,468.30 and 356,681.24 is: 492,246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,566.68 : 867,468.30 = 356,681.24 : x
  2. Step 2: Convert to fraction form
    628,566.68/867,468.30 = 356,681.24/x
  3. Step 3: Cross multiply
    628,566.68x = 867,468.30 × 356,681.24
  4. Step 4: Simplify right side
    628,566.68x = 309,409,668,904.69
  5. Step 5: Solve for x
    x = 309,409,668,904.69/628,566.68
  6. Step 6: Final answer
    x = 492,246.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.