Home / 1,120,055.40-1,679,888.70-409,717.80

Finding the Fourth Proportional to 1,120,055.40, 1,679,888.70 and 409,717.80

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Solution

The fourth proportional to 1,120,055.40, 1,679,888.70 and 409,717.80 is: 614,505.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,055.40 : 1,679,888.70 = 409,717.80 : x
  2. Step 2: Convert to fraction form
    1,120,055.40/1,679,888.70 = 409,717.80/x
  3. Step 3: Cross multiply
    1,120,055.40x = 1,679,888.70 × 409,717.80
  4. Step 4: Simplify right side
    1,120,055.40x = 688,280,302,408.86
  5. Step 5: Solve for x
    x = 688,280,302,408.86/1,120,055.40
  6. Step 6: Final answer
    x = 614,505.59

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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.