Home / 1,820,420.49-2,513,124.69-1,329,839.15

Finding the Fourth Proportional to 1,820,420.49, 2,513,124.69 and 1,329,839.15

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Solution

The fourth proportional to 1,820,420.49, 2,513,124.69 and 1,329,839.15 is: 1,835,867.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,420.49 : 2,513,124.69 = 1,329,839.15 : x
  2. Step 2: Convert to fraction form
    1,820,420.49/2,513,124.69 = 1,329,839.15/x
  3. Step 3: Cross multiply
    1,820,420.49x = 2,513,124.69 × 1,329,839.15
  4. Step 4: Simplify right side
    1,820,420.49x = 3,342,051,582,378.79
  5. Step 5: Solve for x
    x = 3,342,051,582,378.79/1,820,420.49
  6. Step 6: Final answer
    x = 1,835,867.92

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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.