Home / 840,319.88-1,159,434.42-513,549.32

Finding the Fourth Proportional to 840,319.88, 1,159,434.42 and 513,549.32

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Solution

The fourth proportional to 840,319.88, 1,159,434.42 and 513,549.32 is: 708,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,319.88 : 1,159,434.42 = 513,549.32 : x
  2. Step 2: Convert to fraction form
    840,319.88/1,159,434.42 = 513,549.32/x
  3. Step 3: Cross multiply
    840,319.88x = 1,159,434.42 × 513,549.32
  4. Step 4: Simplify right side
    840,319.88x = 595,426,757,975.59
  5. Step 5: Solve for x
    x = 595,426,757,975.59/840,319.88
  6. Step 6: Final answer
    x = 708,571.55

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Double scale
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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.