Home / 442,905.40-663,677.70-330,056.20

Finding the Fourth Proportional to 442,905.40, 663,677.70 and 330,056.20

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Solution

The fourth proportional to 442,905.40, 663,677.70 and 330,056.20 is: 494,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,905.40 : 663,677.70 = 330,056.20 : x
  2. Step 2: Convert to fraction form
    442,905.40/663,677.70 = 330,056.20/x
  3. Step 3: Cross multiply
    442,905.40x = 663,677.70 × 330,056.20
  4. Step 4: Simplify right side
    442,905.40x = 219,050,939,686.74
  5. Step 5: Solve for x
    x = 219,050,939,686.74/442,905.40
  6. Step 6: Final answer
    x = 494,577.26

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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.