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Finding the Fourth Proportional to 460,877.45, 635,948.50 and 256,918.51

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Solution

The fourth proportional to 460,877.45, 635,948.50 and 256,918.51 is: 354,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,877.45 : 635,948.50 = 256,918.51 : x
  2. Step 2: Convert to fraction form
    460,877.45/635,948.50 = 256,918.51/x
  3. Step 3: Cross multiply
    460,877.45x = 635,948.50 × 256,918.51
  4. Step 4: Simplify right side
    460,877.45x = 163,386,940,986.37
  5. Step 5: Solve for x
    x = 163,386,940,986.37/460,877.45
  6. Step 6: Final answer
    x = 354,512.77

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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.