Home / 706,720.20-1,057,488.30-520,096.20

Finding the Fourth Proportional to 706,720.20, 1,057,488.30 and 520,096.20

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Solution

The fourth proportional to 706,720.20, 1,057,488.30 and 520,096.20 is: 778,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,720.20 : 1,057,488.30 = 520,096.20 : x
  2. Step 2: Convert to fraction form
    706,720.20/1,057,488.30 = 520,096.20/x
  3. Step 3: Cross multiply
    706,720.20x = 1,057,488.30 × 520,096.20
  4. Step 4: Simplify right side
    706,720.20x = 549,995,646,374.46
  5. Step 5: Solve for x
    x = 549,995,646,374.46/706,720.20
  6. Step 6: Final answer
    x = 778,236.77

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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.