Home / 442,988.20-664,482.30-310,018.60

Finding the Fourth Proportional to 442,988.20, 664,482.30 and 310,018.60

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Solution

The fourth proportional to 442,988.20, 664,482.30 and 310,018.60 is: 465,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,988.20 : 664,482.30 = 310,018.60 : x
  2. Step 2: Convert to fraction form
    442,988.20/664,482.30 = 310,018.60/x
  3. Step 3: Cross multiply
    442,988.20x = 664,482.30 × 310,018.60
  4. Step 4: Simplify right side
    442,988.20x = 206,001,872,370.78
  5. Step 5: Solve for x
    x = 206,001,872,370.78/442,988.20
  6. Step 6: Final answer
    x = 465,027.90

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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.