Home / 879,459.40-1,317,633.90-745,712.20

Finding the Fourth Proportional to 879,459.40, 1,317,633.90 and 745,712.20

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Solution

The fourth proportional to 879,459.40, 1,317,633.90 and 745,712.20 is: 1,117,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,459.40 : 1,317,633.90 = 745,712.20 : x
  2. Step 2: Convert to fraction form
    879,459.40/1,317,633.90 = 745,712.20/x
  3. Step 3: Cross multiply
    879,459.40x = 1,317,633.90 × 745,712.20
  4. Step 4: Simplify right side
    879,459.40x = 982,575,674,363.58
  5. Step 5: Solve for x
    x = 982,575,674,363.58/879,459.40
  6. Step 6: Final answer
    x = 1,117,249.61

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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.