Home / 1,398,731.15-2,098,089.80-1,208,612.97

Finding the Fourth Proportional to 1,398,731.15, 2,098,089.80 and 1,208,612.97

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Solution

The fourth proportional to 1,398,731.15, 2,098,089.80 and 1,208,612.97 is: 1,812,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,731.15 : 2,098,089.80 = 1,208,612.97 : x
  2. Step 2: Convert to fraction form
    1,398,731.15/2,098,089.80 = 1,208,612.97/x
  3. Step 3: Cross multiply
    1,398,731.15x = 2,098,089.80 × 1,208,612.97
  4. Step 4: Simplify right side
    1,398,731.15x = 2,535,778,538,461.64
  5. Step 5: Solve for x
    x = 2,535,778,538,461.64/1,398,731.15
  6. Step 6: Final answer
    x = 1,812,913.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.