Home / 2,121,294.17-2,928,002.82-1,386,359.01

Finding the Fourth Proportional to 2,121,294.17, 2,928,002.82 and 1,386,359.01

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Solution

The fourth proportional to 2,121,294.17, 2,928,002.82 and 1,386,359.01 is: 1,913,578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,294.17 : 2,928,002.82 = 1,386,359.01 : x
  2. Step 2: Convert to fraction form
    2,121,294.17/2,928,002.82 = 1,386,359.01/x
  3. Step 3: Cross multiply
    2,121,294.17x = 2,928,002.82 × 1,386,359.01
  4. Step 4: Simplify right side
    2,121,294.17x = 4,059,263,090,812.41
  5. Step 5: Solve for x
    x = 4,059,263,090,812.41/2,121,294.17
  6. Step 6: Final answer
    x = 1,913,578.58

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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.