Home / 447,621.40-671,432.10-346,144.60

Finding the Fourth Proportional to 447,621.40, 671,432.10 and 346,144.60

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Solution

The fourth proportional to 447,621.40, 671,432.10 and 346,144.60 is: 519,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,621.40 : 671,432.10 = 346,144.60 : x
  2. Step 2: Convert to fraction form
    447,621.40/671,432.10 = 346,144.60/x
  3. Step 3: Cross multiply
    447,621.40x = 671,432.10 × 346,144.60
  4. Step 4: Simplify right side
    447,621.40x = 232,412,595,681.66
  5. Step 5: Solve for x
    x = 232,412,595,681.66/447,621.40
  6. Step 6: Final answer
    x = 519,216.90

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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.