Home / 909,917.10-1,364,875.65-278,748.90

Finding the Fourth Proportional to 909,917.10, 1,364,875.65 and 278,748.90

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Solution

The fourth proportional to 909,917.10, 1,364,875.65 and 278,748.90 is: 418,123.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,917.10 : 1,364,875.65 = 278,748.90 : x
  2. Step 2: Convert to fraction form
    909,917.10/1,364,875.65 = 278,748.90/x
  3. Step 3: Cross multiply
    909,917.10x = 1,364,875.65 × 278,748.90
  4. Step 4: Simplify right side
    909,917.10x = 380,457,586,074.29
  5. Step 5: Solve for x
    x = 380,457,586,074.29/909,917.10
  6. Step 6: Final answer
    x = 418,123.35

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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.