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Finding the Fourth Proportional to 630,701.60, 946,052.40 and 518,727.20

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Solution

The fourth proportional to 630,701.60, 946,052.40 and 518,727.20 is: 778,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,701.60 : 946,052.40 = 518,727.20 : x
  2. Step 2: Convert to fraction form
    630,701.60/946,052.40 = 518,727.20/x
  3. Step 3: Cross multiply
    630,701.60x = 946,052.40 × 518,727.20
  4. Step 4: Simplify right side
    630,701.60x = 490,743,112,505.28
  5. Step 5: Solve for x
    x = 490,743,112,505.28/630,701.60
  6. Step 6: Final answer
    x = 778,090.80

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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.