Home / 2,712,005.70-4,068,008.55-690,245.70

Finding the Fourth Proportional to 2,712,005.70, 4,068,008.55 and 690,245.70

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Solution

The fourth proportional to 2,712,005.70, 4,068,008.55 and 690,245.70 is: 1,035,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,005.70 : 4,068,008.55 = 690,245.70 : x
  2. Step 2: Convert to fraction form
    2,712,005.70/4,068,008.55 = 690,245.70/x
  3. Step 3: Cross multiply
    2,712,005.70x = 4,068,008.55 × 690,245.70
  4. Step 4: Simplify right side
    2,712,005.70x = 2,807,925,409,200.74
  5. Step 5: Solve for x
    x = 2,807,925,409,200.74/2,712,005.70
  6. Step 6: Final answer
    x = 1,035,368.55

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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.