Home / 3,280,457.70-4,920,686.55-1,931,235.30

Finding the Fourth Proportional to 3,280,457.70, 4,920,686.55 and 1,931,235.30

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Solution

The fourth proportional to 3,280,457.70, 4,920,686.55 and 1,931,235.30 is: 2,896,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,457.70 : 4,920,686.55 = 1,931,235.30 : x
  2. Step 2: Convert to fraction form
    3,280,457.70/4,920,686.55 = 1,931,235.30/x
  3. Step 3: Cross multiply
    3,280,457.70x = 4,920,686.55 × 1,931,235.30
  4. Step 4: Simplify right side
    3,280,457.70x = 9,503,003,565,595.22
  5. Step 5: Solve for x
    x = 9,503,003,565,595.22/3,280,457.70
  6. Step 6: Final answer
    x = 2,896,852.95

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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.