Home / 438,604.13-658,168.67-402,912.29

Finding the Fourth Proportional to 438,604.13, 658,168.67 and 402,912.29

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Solution

The fourth proportional to 438,604.13, 658,168.67 and 402,912.29 is: 604,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,604.13 : 658,168.67 = 402,912.29 : x
  2. Step 2: Convert to fraction form
    438,604.13/658,168.67 = 402,912.29/x
  3. Step 3: Cross multiply
    438,604.13x = 658,168.67 × 402,912.29
  4. Step 4: Simplify right side
    438,604.13x = 265,184,248,688.66
  5. Step 5: Solve for x
    x = 265,184,248,688.66/438,604.13
  6. Step 6: Final answer
    x = 604,609.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.