Home / 628,695.15-867,575.16-356,746.83

Finding the Fourth Proportional to 628,695.15, 867,575.16 and 356,746.83

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Solution

The fourth proportional to 628,695.15, 867,575.16 and 356,746.83 is: 492,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,695.15 : 867,575.16 = 356,746.83 : x
  2. Step 2: Convert to fraction form
    628,695.15/867,575.16 = 356,746.83/x
  3. Step 3: Cross multiply
    628,695.15x = 867,575.16 × 356,746.83
  4. Step 4: Simplify right side
    628,695.15x = 309,504,688,116.74
  5. Step 5: Solve for x
    x = 309,504,688,116.74/628,695.15
  6. Step 6: Final answer
    x = 492,296.92

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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.