Home / 790,820.52-1,091,332.14-428,244.37

Finding the Fourth Proportional to 790,820.52, 1,091,332.14 and 428,244.37

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Solution

The fourth proportional to 790,820.52, 1,091,332.14 and 428,244.37 is: 590,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,820.52 : 1,091,332.14 = 428,244.37 : x
  2. Step 2: Convert to fraction form
    790,820.52/1,091,332.14 = 428,244.37/x
  3. Step 3: Cross multiply
    790,820.52x = 1,091,332.14 × 428,244.37
  4. Step 4: Simplify right side
    790,820.52x = 467,356,840,420.81
  5. Step 5: Solve for x
    x = 467,356,840,420.81/790,820.52
  6. Step 6: Final answer
    x = 590,977.13

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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.