Home / 820,709.47-1,132,429.76-576,440.60

Finding the Fourth Proportional to 820,709.47, 1,132,429.76 and 576,440.60

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Solution

The fourth proportional to 820,709.47, 1,132,429.76 and 576,440.60 is: 795,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,709.47 : 1,132,429.76 = 576,440.60 : x
  2. Step 2: Convert to fraction form
    820,709.47/1,132,429.76 = 576,440.60/x
  3. Step 3: Cross multiply
    820,709.47x = 1,132,429.76 × 576,440.60
  4. Step 4: Simplify right side
    820,709.47x = 652,778,484,650.11
  5. Step 5: Solve for x
    x = 652,778,484,650.11/820,709.47
  6. Step 6: Final answer
    x = 795,383.15

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1.5x scale

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.