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Finding the Fourth Proportional to 448,874.79, 619,015.12 and 302,030.49

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Solution

The fourth proportional to 448,874.79, 619,015.12 and 302,030.49 is: 416,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,874.79 : 619,015.12 = 302,030.49 : x
  2. Step 2: Convert to fraction form
    448,874.79/619,015.12 = 302,030.49/x
  3. Step 3: Cross multiply
    448,874.79x = 619,015.12 × 302,030.49
  4. Step 4: Simplify right side
    448,874.79x = 186,961,440,011.01
  5. Step 5: Solve for x
    x = 186,961,440,011.01/448,874.79
  6. Step 6: Final answer
    x = 416,511.34

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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.