Home / 442,830.90-664,246.35-293,240.10

Finding the Fourth Proportional to 442,830.90, 664,246.35 and 293,240.10

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Solution

The fourth proportional to 442,830.90, 664,246.35 and 293,240.10 is: 439,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,830.90 : 664,246.35 = 293,240.10 : x
  2. Step 2: Convert to fraction form
    442,830.90/664,246.35 = 293,240.10/x
  3. Step 3: Cross multiply
    442,830.90x = 664,246.35 × 293,240.10
  4. Step 4: Simplify right side
    442,830.90x = 194,783,666,098.64
  5. Step 5: Solve for x
    x = 194,783,666,098.64/442,830.90
  6. Step 6: Final answer
    x = 439,860.15

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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.