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Finding the Fourth Proportional to 659,436.08, 910,070.64 and 369,076.68

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Solution

The fourth proportional to 659,436.08, 910,070.64 and 369,076.68 is: 509,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,436.08 : 910,070.64 = 369,076.68 : x
  2. Step 2: Convert to fraction form
    659,436.08/910,070.64 = 369,076.68/x
  3. Step 3: Cross multiply
    659,436.08x = 910,070.64 × 369,076.68
  4. Step 4: Simplify right side
    659,436.08x = 335,885,850,376.68
  5. Step 5: Solve for x
    x = 335,885,850,376.68/659,436.08
  6. Step 6: Final answer
    x = 509,353.16

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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.