Home / 2,691,315.90-4,036,423.34-771,712.87

Finding the Fourth Proportional to 2,691,315.90, 4,036,423.34 and 771,712.87

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Solution

The fourth proportional to 2,691,315.90, 4,036,423.34 and 771,712.87 is: 1,157,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691,315.90 : 4,036,423.34 = 771,712.87 : x
  2. Step 2: Convert to fraction form
    2,691,315.90/4,036,423.34 = 771,712.87/x
  3. Step 3: Cross multiply
    2,691,315.90x = 4,036,423.34 × 771,712.87
  4. Step 4: Simplify right side
    2,691,315.90x = 3,114,959,835,312.02
  5. Step 5: Solve for x
    x = 3,114,959,835,312.02/2,691,315.90
  6. Step 6: Final answer
    x = 1,157,411.45

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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.