Home / 772,747.92-1,065,465.36-500,716.53

Finding the Fourth Proportional to 772,747.92, 1,065,465.36 and 500,716.53

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Solution

The fourth proportional to 772,747.92, 1,065,465.36 and 500,716.53 is: 690,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,747.92 : 1,065,465.36 = 500,716.53 : x
  2. Step 2: Convert to fraction form
    772,747.92/1,065,465.36 = 500,716.53/x
  3. Step 3: Cross multiply
    772,747.92x = 1,065,465.36 × 500,716.53
  4. Step 4: Simplify right side
    772,747.92x = 533,496,117,894.40
  5. Step 5: Solve for x
    x = 533,496,117,894.40/772,747.92
  6. Step 6: Final answer
    x = 690,388.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.