Home / 879,025.20-1,315,038.60-761,996.40

Finding the Fourth Proportional to 879,025.20, 1,315,038.60 and 761,996.40

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Solution

The fourth proportional to 879,025.20, 1,315,038.60 and 761,996.40 is: 1,139,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,025.20 : 1,315,038.60 = 761,996.40 : x
  2. Step 2: Convert to fraction form
    879,025.20/1,315,038.60 = 761,996.40/x
  3. Step 3: Cross multiply
    879,025.20x = 1,315,038.60 × 761,996.40
  4. Step 4: Simplify right side
    879,025.20x = 1,002,054,679,061.04
  5. Step 5: Solve for x
    x = 1,002,054,679,061.04/879,025.20
  6. Step 6: Final answer
    x = 1,139,961.27

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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.