Home / 1,120,690.60-1,681,254.60-446,657.20

Finding the Fourth Proportional to 1,120,690.60, 1,681,254.60 and 446,657.20

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Solution

The fourth proportional to 1,120,690.60, 1,681,254.60 and 446,657.20 is: 670,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,690.60 : 1,681,254.60 = 446,657.20 : x
  2. Step 2: Convert to fraction form
    1,120,690.60/1,681,254.60 = 446,657.20/x
  3. Step 3: Cross multiply
    1,120,690.60x = 1,681,254.60 × 446,657.20
  4. Step 4: Simplify right side
    1,120,690.60x = 750,944,472,123.12
  5. Step 5: Solve for x
    x = 750,944,472,123.12/1,120,690.60
  6. Step 6: Final answer
    x = 670,072.96

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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.