Home / 2,712,051.20-4,068,076.80-690,291.20

Finding the Fourth Proportional to 2,712,051.20, 4,068,076.80 and 690,291.20

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Solution

The fourth proportional to 2,712,051.20, 4,068,076.80 and 690,291.20 is: 1,035,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,051.20 : 4,068,076.80 = 690,291.20 : x
  2. Step 2: Convert to fraction form
    2,712,051.20/4,068,076.80 = 690,291.20/x
  3. Step 3: Cross multiply
    2,712,051.20x = 4,068,076.80 × 690,291.20
  4. Step 4: Simplify right side
    2,712,051.20x = 2,808,157,615,964.16
  5. Step 5: Solve for x
    x = 2,808,157,615,964.16/2,712,051.20
  6. Step 6: Final answer
    x = 1,035,436.80

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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.