Home / 447,388.49-617,386.96-243,443.45

Finding the Fourth Proportional to 447,388.49, 617,386.96 and 243,443.45

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Solution

The fourth proportional to 447,388.49, 617,386.96 and 243,443.45 is: 335,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,388.49 : 617,386.96 = 243,443.45 : x
  2. Step 2: Convert to fraction form
    447,388.49/617,386.96 = 243,443.45/x
  3. Step 3: Cross multiply
    447,388.49x = 617,386.96 × 243,443.45
  4. Step 4: Simplify right side
    447,388.49x = 150,298,812,462.27
  5. Step 5: Solve for x
    x = 150,298,812,462.27/447,388.49
  6. Step 6: Final answer
    x = 335,946.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.