Home / 790,614.78-1,091,048.85-428,038.74

Finding the Fourth Proportional to 790,614.78, 1,091,048.85 and 428,038.74

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Solution

The fourth proportional to 790,614.78, 1,091,048.85 and 428,038.74 is: 590,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,614.78 : 1,091,048.85 = 428,038.74 : x
  2. Step 2: Convert to fraction form
    790,614.78/1,091,048.85 = 428,038.74/x
  3. Step 3: Cross multiply
    790,614.78x = 1,091,048.85 × 428,038.74
  4. Step 4: Simplify right side
    790,614.78x = 467,011,175,032.45
  5. Step 5: Solve for x
    x = 467,011,175,032.45/790,614.78
  6. Step 6: Final answer
    x = 590,693.71

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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.