Home / 628,924.10-867,907.71-342,444.11

Finding the Fourth Proportional to 628,924.10, 867,907.71 and 342,444.11

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Solution

The fourth proportional to 628,924.10, 867,907.71 and 342,444.11 is: 472,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,924.10 : 867,907.71 = 342,444.11 : x
  2. Step 2: Convert to fraction form
    628,924.10/867,907.71 = 342,444.11/x
  3. Step 3: Cross multiply
    628,924.10x = 867,907.71 × 342,444.11
  4. Step 4: Simplify right side
    628,924.10x = 297,209,878,973.55
  5. Step 5: Solve for x
    x = 297,209,878,973.55/628,924.10
  6. Step 6: Final answer
    x = 472,568.76

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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.