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Finding the Fourth Proportional to 659,405.11, 910,017.42 and 369,014.22

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Solution

The fourth proportional to 659,405.11, 910,017.42 and 369,014.22 is: 509,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,405.11 : 910,017.42 = 369,014.22 : x
  2. Step 2: Convert to fraction form
    659,405.11/910,017.42 = 369,014.22/x
  3. Step 3: Cross multiply
    659,405.11x = 910,017.42 × 369,014.22
  4. Step 4: Simplify right side
    659,405.11x = 335,809,368,427.71
  5. Step 5: Solve for x
    x = 335,809,368,427.71/659,405.11
  6. Step 6: Final answer
    x = 509,261.10

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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.