Home / 878,826.40-1,318,385.69-302,426.66

Finding the Fourth Proportional to 878,826.40, 1,318,385.69 and 302,426.66

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Solution

The fourth proportional to 878,826.40, 1,318,385.69 and 302,426.66 is: 453,690.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,826.40 : 1,318,385.69 = 302,426.66 : x
  2. Step 2: Convert to fraction form
    878,826.40/1,318,385.69 = 302,426.66/x
  3. Step 3: Cross multiply
    878,826.40x = 1,318,385.69 × 302,426.66
  4. Step 4: Simplify right side
    878,826.40x = 398,714,983,311.12
  5. Step 5: Solve for x
    x = 398,714,983,311.12/878,826.40
  6. Step 6: Final answer
    x = 453,690.27

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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.