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Finding the Fourth Proportional to 971,492.40, 1,456,979.40 and 340,340.40

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Solution

The fourth proportional to 971,492.40, 1,456,979.40 and 340,340.40 is: 510,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,492.40 : 1,456,979.40 = 340,340.40 : x
  2. Step 2: Convert to fraction form
    971,492.40/1,456,979.40 = 340,340.40/x
  3. Step 3: Cross multiply
    971,492.40x = 1,456,979.40 × 340,340.40
  4. Step 4: Simplify right side
    971,492.40x = 495,868,951,787.76
  5. Step 5: Solve for x
    x = 495,868,951,787.76/971,492.40
  6. Step 6: Final answer
    x = 510,419.80

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