Home / 1,893,957.12-2,612,887.02-1,398,428.55

Finding the Fourth Proportional to 1,893,957.12, 2,612,887.02 and 1,398,428.55

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Solution

The fourth proportional to 1,893,957.12, 2,612,887.02 and 1,398,428.55 is: 1,929,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893,957.12 : 2,612,887.02 = 1,398,428.55 : x
  2. Step 2: Convert to fraction form
    1,893,957.12/2,612,887.02 = 1,398,428.55/x
  3. Step 3: Cross multiply
    1,893,957.12x = 2,612,887.02 × 1,398,428.55
  4. Step 4: Simplify right side
    1,893,957.12x = 3,653,935,806,692.42
  5. Step 5: Solve for x
    x = 3,653,935,806,692.42/1,893,957.12
  6. Step 6: Final answer
    x = 1,929,260.05

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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.