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Finding the Fourth Proportional to 615,825.05, 849,830.54 and 343,897.72

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Solution

The fourth proportional to 615,825.05, 849,830.54 and 343,897.72 is: 474,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,825.05 : 849,830.54 = 343,897.72 : x
  2. Step 2: Convert to fraction form
    615,825.05/849,830.54 = 343,897.72/x
  3. Step 3: Cross multiply
    615,825.05x = 849,830.54 × 343,897.72
  4. Step 4: Simplify right side
    615,825.05x = 292,254,781,248.30
  5. Step 5: Solve for x
    x = 292,254,781,248.30/615,825.05
  6. Step 6: Final answer
    x = 474,574.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.