Home / 1,329,630.84-1,835,035.02-820,320.12

Finding the Fourth Proportional to 1,329,630.84, 1,835,035.02 and 820,320.12

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Solution

The fourth proportional to 1,329,630.84, 1,835,035.02 and 820,320.12 is: 1,132,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,630.84 : 1,835,035.02 = 820,320.12 : x
  2. Step 2: Convert to fraction form
    1,329,630.84/1,835,035.02 = 820,320.12/x
  3. Step 3: Cross multiply
    1,329,630.84x = 1,835,035.02 × 820,320.12
  4. Step 4: Simplify right side
    1,329,630.84x = 1,505,316,147,810.60
  5. Step 5: Solve for x
    x = 1,505,316,147,810.60/1,329,630.84
  6. Step 6: Final answer
    x = 1,132,130.89

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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.