Home / 790,803.88-1,091,307.38-428,227.71

Finding the Fourth Proportional to 790,803.88, 1,091,307.38 and 428,227.71

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Solution

The fourth proportional to 790,803.88, 1,091,307.38 and 428,227.71 is: 590,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,803.88 : 1,091,307.38 = 428,227.71 : x
  2. Step 2: Convert to fraction form
    790,803.88/1,091,307.38 = 428,227.71/x
  3. Step 3: Cross multiply
    790,803.88x = 1,091,307.38 × 428,227.71
  4. Step 4: Simplify right side
    790,803.88x = 467,328,054,009.96
  5. Step 5: Solve for x
    x = 467,328,054,009.96/790,803.88
  6. Step 6: Final answer
    x = 590,953.16

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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.