Home / 460,688.12-635,373.60-386,815.28

Finding the Fourth Proportional to 460,688.12, 635,373.60 and 386,815.28

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Solution

The fourth proportional to 460,688.12, 635,373.60 and 386,815.28 is: 533,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,688.12 : 635,373.60 = 386,815.28 : x
  2. Step 2: Convert to fraction form
    460,688.12/635,373.60 = 386,815.28/x
  3. Step 3: Cross multiply
    460,688.12x = 635,373.60 × 386,815.28
  4. Step 4: Simplify right side
    460,688.12x = 245,772,216,988.61
  5. Step 5: Solve for x
    x = 245,772,216,988.61/460,688.12
  6. Step 6: Final answer
    x = 533,489.37

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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.