Home / 781,340.36-1,172,056.38-301,570.76

Finding the Fourth Proportional to 781,340.36, 1,172,056.38 and 301,570.76

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Solution

The fourth proportional to 781,340.36, 1,172,056.38 and 301,570.76 is: 452,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,340.36 : 1,172,056.38 = 301,570.76 : x
  2. Step 2: Convert to fraction form
    781,340.36/1,172,056.38 = 301,570.76/x
  3. Step 3: Cross multiply
    781,340.36x = 1,172,056.38 × 301,570.76
  4. Step 4: Simplify right side
    781,340.36x = 353,457,933,279.45
  5. Step 5: Solve for x
    x = 353,457,933,279.45/781,340.36
  6. Step 6: Final answer
    x = 452,373.83

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1.5x scale

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.