Home / 647,387.80-893,399.02-375,617.54

Finding the Fourth Proportional to 647,387.80, 893,399.02 and 375,617.54

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Solution

The fourth proportional to 647,387.80, 893,399.02 and 375,617.54 is: 518,354.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,387.80 : 893,399.02 = 375,617.54 : x
  2. Step 2: Convert to fraction form
    647,387.80/893,399.02 = 375,617.54/x
  3. Step 3: Cross multiply
    647,387.80x = 893,399.02 × 375,617.54
  4. Step 4: Simplify right side
    647,387.80x = 335,576,342,130.81
  5. Step 5: Solve for x
    x = 335,576,342,130.81/647,387.80
  6. Step 6: Final answer
    x = 518,354.44

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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.