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Finding the Fourth Proportional to 615,557.76, 849,853.92 and 472,041.60

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Solution

The fourth proportional to 615,557.76, 849,853.92 and 472,041.60 is: 651,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,557.76 : 849,853.92 = 472,041.60 : x
  2. Step 2: Convert to fraction form
    615,557.76/849,853.92 = 472,041.60/x
  3. Step 3: Cross multiply
    615,557.76x = 849,853.92 × 472,041.60
  4. Step 4: Simplify right side
    615,557.76x = 401,166,404,163.07
  5. Step 5: Solve for x
    x = 401,166,404,163.07/615,557.76
  6. Step 6: Final answer
    x = 651,712.04

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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.