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Finding the Fourth Proportional to 614,963.60, 922,445.40 and 404,838.80

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Solution

The fourth proportional to 614,963.60, 922,445.40 and 404,838.80 is: 607,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,963.60 : 922,445.40 = 404,838.80 : x
  2. Step 2: Convert to fraction form
    614,963.60/922,445.40 = 404,838.80/x
  3. Step 3: Cross multiply
    614,963.60x = 922,445.40 × 404,838.80
  4. Step 4: Simplify right side
    614,963.60x = 373,441,688,801.52
  5. Step 5: Solve for x
    x = 373,441,688,801.52/614,963.60
  6. Step 6: Final answer
    x = 607,258.20

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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.