Home / 628,909.34-867,883.65-342,424.22

Finding the Fourth Proportional to 628,909.34, 867,883.65 and 342,424.22

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Solution

The fourth proportional to 628,909.34, 867,883.65 and 342,424.22 is: 472,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,909.34 : 867,883.65 = 342,424.22 : x
  2. Step 2: Convert to fraction form
    628,909.34/867,883.65 = 342,424.22/x
  3. Step 3: Cross multiply
    628,909.34x = 867,883.65 × 342,424.22
  4. Step 4: Simplify right side
    628,909.34x = 297,184,381,902.00
  5. Step 5: Solve for x
    x = 297,184,381,902.00/628,909.34
  6. Step 6: Final answer
    x = 472,539.30

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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.