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Finding the Fourth Proportional to 495,268.40, 742,902.60 and 490,602.80

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Solution

The fourth proportional to 495,268.40, 742,902.60 and 490,602.80 is: 735,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,268.40 : 742,902.60 = 490,602.80 : x
  2. Step 2: Convert to fraction form
    495,268.40/742,902.60 = 490,602.80/x
  3. Step 3: Cross multiply
    495,268.40x = 742,902.60 × 490,602.80
  4. Step 4: Simplify right side
    495,268.40x = 364,470,095,687.28
  5. Step 5: Solve for x
    x = 364,470,095,687.28/495,268.40
  6. Step 6: Final answer
    x = 735,904.20

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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.