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Finding the Fourth Proportional to 660,048.84, 910,867.32 and 358,242.84

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Solution

The fourth proportional to 660,048.84, 910,867.32 and 358,242.84 is: 494,375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,048.84 : 910,867.32 = 358,242.84 : x
  2. Step 2: Convert to fraction form
    660,048.84/910,867.32 = 358,242.84/x
  3. Step 3: Cross multiply
    660,048.84x = 910,867.32 × 358,242.84
  4. Step 4: Simplify right side
    660,048.84x = 326,311,695,579.99
  5. Step 5: Solve for x
    x = 326,311,695,579.99/660,048.84
  6. Step 6: Final answer
    x = 494,375.08

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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.