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Finding the Fourth Proportional to 615,122.40, 922,683.60 and 349,401.90

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Solution

The fourth proportional to 615,122.40, 922,683.60 and 349,401.90 is: 524,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,122.40 : 922,683.60 = 349,401.90 : x
  2. Step 2: Convert to fraction form
    615,122.40/922,683.60 = 349,401.90/x
  3. Step 3: Cross multiply
    615,122.40x = 922,683.60 × 349,401.90
  4. Step 4: Simplify right side
    615,122.40x = 322,387,402,938.84
  5. Step 5: Solve for x
    x = 322,387,402,938.84/615,122.40
  6. Step 6: Final answer
    x = 524,102.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.