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Finding the Fourth Proportional to 495,870.20, 743,805.30 and 306,913.40

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Solution

The fourth proportional to 495,870.20, 743,805.30 and 306,913.40 is: 460,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,870.20 : 743,805.30 = 306,913.40 : x
  2. Step 2: Convert to fraction form
    495,870.20/743,805.30 = 306,913.40/x
  3. Step 3: Cross multiply
    495,870.20x = 743,805.30 × 306,913.40
  4. Step 4: Simplify right side
    495,870.20x = 228,283,813,561.02
  5. Step 5: Solve for x
    x = 228,283,813,561.02/495,870.20
  6. Step 6: Final answer
    x = 460,370.10

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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.