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Finding the Fourth Proportional to 615,603.66, 849,450.66 and 343,631.98

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Solution

The fourth proportional to 615,603.66, 849,450.66 and 343,631.98 is: 474,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,603.66 : 849,450.66 = 343,631.98 : x
  2. Step 2: Convert to fraction form
    615,603.66/849,450.66 = 343,631.98/x
  3. Step 3: Cross multiply
    615,603.66x = 849,450.66 × 343,631.98
  4. Step 4: Simplify right side
    615,603.66x = 291,898,412,208.11
  5. Step 5: Solve for x
    x = 291,898,412,208.11/615,603.66
  6. Step 6: Final answer
    x = 474,166.14

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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.