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Finding the Fourth Proportional to 659,906.08, 910,671.12 and 358,100.08

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Solution

The fourth proportional to 659,906.08, 910,671.12 and 358,100.08 is: 494,178.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,906.08 : 910,671.12 = 358,100.08 : x
  2. Step 2: Convert to fraction form
    659,906.08/910,671.12 = 358,100.08/x
  3. Step 3: Cross multiply
    659,906.08x = 910,671.12 × 358,100.08
  4. Step 4: Simplify right side
    659,906.08x = 326,111,400,925.69
  5. Step 5: Solve for x
    x = 326,111,400,925.69/659,906.08
  6. Step 6: Final answer
    x = 494,178.51

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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.