Home / 1,390,364.20-2,083,991.10-791,612.20

Finding the Fourth Proportional to 1,390,364.20, 2,083,991.10 and 791,612.20

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Solution

The fourth proportional to 1,390,364.20, 2,083,991.10 and 791,612.20 is: 1,186,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,364.20 : 2,083,991.10 = 791,612.20 : x
  2. Step 2: Convert to fraction form
    1,390,364.20/2,083,991.10 = 791,612.20/x
  3. Step 3: Cross multiply
    1,390,364.20x = 2,083,991.10 × 791,612.20
  4. Step 4: Simplify right side
    1,390,364.20x = 1,649,712,779,451.42
  5. Step 5: Solve for x
    x = 1,649,712,779,451.42/1,390,364.20
  6. Step 6: Final answer
    x = 1,186,532.84

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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.