Home / 628,501.64-867,330.65-342,021.65

Finding the Fourth Proportional to 628,501.64, 867,330.65 and 342,021.65

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Solution

The fourth proportional to 628,501.64, 867,330.65 and 342,021.65 is: 471,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,501.64 : 867,330.65 = 342,021.65 : x
  2. Step 2: Convert to fraction form
    628,501.64/867,330.65 = 342,021.65/x
  3. Step 3: Cross multiply
    628,501.64x = 867,330.65 × 342,021.65
  4. Step 4: Simplify right side
    628,501.64x = 296,645,856,526.97
  5. Step 5: Solve for x
    x = 296,645,856,526.97/628,501.64
  6. Step 6: Final answer
    x = 471,989.00

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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.