Home / 421,004.16-580,994.10-230,029.40

Finding the Fourth Proportional to 421,004.16, 580,994.10 and 230,029.40

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Solution

The fourth proportional to 421,004.16, 580,994.10 and 230,029.40 is: 317,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,004.16 : 580,994.10 = 230,029.40 : x
  2. Step 2: Convert to fraction form
    421,004.16/580,994.10 = 230,029.40/x
  3. Step 3: Cross multiply
    421,004.16x = 580,994.10 × 230,029.40
  4. Step 4: Simplify right side
    421,004.16x = 133,645,724,226.54
  5. Step 5: Solve for x
    x = 133,645,724,226.54/421,004.16
  6. Step 6: Final answer
    x = 317,445.14

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1.5x scale

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.