Home / 628,308.90-867,070.10-341,831.04

Finding the Fourth Proportional to 628,308.90, 867,070.10 and 341,831.04

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Solution

The fourth proportional to 628,308.90, 867,070.10 and 341,831.04 is: 471,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,308.90 : 867,070.10 = 341,831.04 : x
  2. Step 2: Convert to fraction form
    628,308.90/867,070.10 = 341,831.04/x
  3. Step 3: Cross multiply
    628,308.90x = 867,070.10 × 341,831.04
  4. Step 4: Simplify right side
    628,308.90x = 296,391,474,035.90
  5. Step 5: Solve for x
    x = 296,391,474,035.90/628,308.90
  6. Step 6: Final answer
    x = 471,728.91

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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.