Home / 628,762.89-867,812.38-356,856.24

Finding the Fourth Proportional to 628,762.89, 867,812.38 and 356,856.24

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Solution

The fourth proportional to 628,762.89, 867,812.38 and 356,856.24 is: 492,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,762.89 : 867,812.38 = 356,856.24 : x
  2. Step 2: Convert to fraction form
    628,762.89/867,812.38 = 356,856.24/x
  3. Step 3: Cross multiply
    628,762.89x = 867,812.38 × 356,856.24
  4. Step 4: Simplify right side
    628,762.89x = 309,684,262,952.25
  5. Step 5: Solve for x
    x = 309,684,262,952.25/628,762.89
  6. Step 6: Final answer
    x = 492,529.49

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1.5x scale

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.