Home / 840,318.88-1,159,433.04-513,548.32

Finding the Fourth Proportional to 840,318.88, 1,159,433.04 and 513,548.32

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Solution

The fourth proportional to 840,318.88, 1,159,433.04 and 513,548.32 is: 708,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,318.88 : 1,159,433.04 = 513,548.32 : x
  2. Step 2: Convert to fraction form
    840,318.88/1,159,433.04 = 513,548.32/x
  3. Step 3: Cross multiply
    840,318.88x = 1,159,433.04 × 513,548.32
  4. Step 4: Simplify right side
    840,318.88x = 595,424,889,844.49
  5. Step 5: Solve for x
    x = 595,424,889,844.49/840,318.88
  6. Step 6: Final answer
    x = 708,570.17

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Double scale
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Similar ratio
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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.