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Finding the Fourth Proportional to 615,470.45, 849,490.95 and 360,903.65

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Solution

The fourth proportional to 615,470.45, 849,490.95 and 360,903.65 is: 498,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,470.45 : 849,490.95 = 360,903.65 : x
  2. Step 2: Convert to fraction form
    615,470.45/849,490.95 = 360,903.65/x
  3. Step 3: Cross multiply
    615,470.45x = 849,490.95 × 360,903.65
  4. Step 4: Simplify right side
    615,470.45x = 306,584,380,249.51
  5. Step 5: Solve for x
    x = 306,584,380,249.51/615,470.45
  6. Step 6: Final answer
    x = 498,130.14

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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.