Home / 891,836.73-1,230,384.33-509,658.48

Finding the Fourth Proportional to 891,836.73, 1,230,384.33 and 509,658.48

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Solution

The fourth proportional to 891,836.73, 1,230,384.33 and 509,658.48 is: 703,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,836.73 : 1,230,384.33 = 509,658.48 : x
  2. Step 2: Convert to fraction form
    891,836.73/1,230,384.33 = 509,658.48/x
  3. Step 3: Cross multiply
    891,836.73x = 1,230,384.33 × 509,658.48
  4. Step 4: Simplify right side
    891,836.73x = 627,075,807,443.62
  5. Step 5: Solve for x
    x = 627,075,807,443.62/891,836.73
  6. Step 6: Final answer
    x = 703,128.48

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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.