Home / 901,326.39-1,243,830.33-493,426.96

Finding the Fourth Proportional to 901,326.39, 1,243,830.33 and 493,426.96

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Solution

The fourth proportional to 901,326.39, 1,243,830.33 and 493,426.96 is: 680,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,326.39 : 1,243,830.33 = 493,426.96 : x
  2. Step 2: Convert to fraction form
    901,326.39/1,243,830.33 = 493,426.96/x
  3. Step 3: Cross multiply
    901,326.39x = 1,243,830.33 × 493,426.96
  4. Step 4: Simplify right side
    901,326.39x = 613,739,415,378.12
  5. Step 5: Solve for x
    x = 613,739,415,378.12/901,326.39
  6. Step 6: Final answer
    x = 680,929.16

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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.