Home / 772,920.20-1,159,898.70-457,041.80

Finding the Fourth Proportional to 772,920.20, 1,159,898.70 and 457,041.80

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Solution

The fourth proportional to 772,920.20, 1,159,898.70 and 457,041.80 is: 685,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,920.20 : 1,159,898.70 = 457,041.80 : x
  2. Step 2: Convert to fraction form
    772,920.20/1,159,898.70 = 457,041.80/x
  3. Step 3: Cross multiply
    772,920.20x = 1,159,898.70 × 457,041.80
  4. Step 4: Simplify right side
    772,920.20x = 530,122,189,665.66
  5. Step 5: Solve for x
    x = 530,122,189,665.66/772,920.20
  6. Step 6: Final answer
    x = 685,869.24

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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.