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Finding the Fourth Proportional to 615,487.03, 849,513.81 and 360,920.23

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Solution

The fourth proportional to 615,487.03, 849,513.81 and 360,920.23 is: 498,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,487.03 : 849,513.81 = 360,920.23 : x
  2. Step 2: Convert to fraction form
    615,487.03/849,513.81 = 360,920.23/x
  3. Step 3: Cross multiply
    615,487.03x = 849,513.81 × 360,920.23
  4. Step 4: Simplify right side
    615,487.03x = 306,606,715,445.81
  5. Step 5: Solve for x
    x = 306,606,715,445.81/615,487.03
  6. Step 6: Final answer
    x = 498,153.01

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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.