Home / 647,721.66-893,899.65-375,789.63

Finding the Fourth Proportional to 647,721.66, 893,899.65 and 375,789.63

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Solution

The fourth proportional to 647,721.66, 893,899.65 and 375,789.63 is: 518,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,721.66 : 893,899.65 = 375,789.63 : x
  2. Step 2: Convert to fraction form
    647,721.66/893,899.65 = 375,789.63/x
  3. Step 3: Cross multiply
    647,721.66x = 893,899.65 × 375,789.63
  4. Step 4: Simplify right side
    647,721.66x = 335,918,216,349.96
  5. Step 5: Solve for x
    x = 335,918,216,349.96/647,721.66
  6. Step 6: Final answer
    x = 518,615.07

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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.