Home / 442,631.98-663,946.55-189,748.36

Finding the Fourth Proportional to 442,631.98, 663,946.55 and 189,748.36

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Solution

The fourth proportional to 442,631.98, 663,946.55 and 189,748.36 is: 284,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,631.98 : 663,946.55 = 189,748.36 : x
  2. Step 2: Convert to fraction form
    442,631.98/663,946.55 = 189,748.36/x
  3. Step 3: Cross multiply
    442,631.98x = 663,946.55 × 189,748.36
  4. Step 4: Simplify right side
    442,631.98x = 125,982,768,990.16
  5. Step 5: Solve for x
    x = 125,982,768,990.16/442,631.98
  6. Step 6: Final answer
    x = 284,621.93

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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.