Home / 501,943.82-692,810.40-287,151.26

Finding the Fourth Proportional to 501,943.82, 692,810.40 and 287,151.26

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Solution

The fourth proportional to 501,943.82, 692,810.40 and 287,151.26 is: 396,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,943.82 : 692,810.40 = 287,151.26 : x
  2. Step 2: Convert to fraction form
    501,943.82/692,810.40 = 287,151.26/x
  3. Step 3: Cross multiply
    501,943.82x = 692,810.40 × 287,151.26
  4. Step 4: Simplify right side
    501,943.82x = 198,941,379,301.10
  5. Step 5: Solve for x
    x = 198,941,379,301.10/501,943.82
  6. Step 6: Final answer
    x = 396,341.92

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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.