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Finding the Fourth Proportional to 659,436.19, 910,021.94 and 372,950.12

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Solution

The fourth proportional to 659,436.19, 910,021.94 and 372,950.12 is: 514,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,436.19 : 910,021.94 = 372,950.12 : x
  2. Step 2: Convert to fraction form
    659,436.19/910,021.94 = 372,950.12/x
  3. Step 3: Cross multiply
    659,436.19x = 910,021.94 × 372,950.12
  4. Step 4: Simplify right side
    659,436.19x = 339,392,793,534.50
  5. Step 5: Solve for x
    x = 339,392,793,534.50/659,436.19
  6. Step 6: Final answer
    x = 514,671.17

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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.