Home / 1,187,592.78-1,781,374.11-289,036.50

Finding the Fourth Proportional to 1,187,592.78, 1,781,374.11 and 289,036.50

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Solution

The fourth proportional to 1,187,592.78, 1,781,374.11 and 289,036.50 is: 433,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,592.78 : 1,781,374.11 = 289,036.50 : x
  2. Step 2: Convert to fraction form
    1,187,592.78/1,781,374.11 = 289,036.50/x
  3. Step 3: Cross multiply
    1,187,592.78x = 1,781,374.11 × 289,036.50
  4. Step 4: Simplify right side
    1,187,592.78x = 514,882,137,945.02
  5. Step 5: Solve for x
    x = 514,882,137,945.02/1,187,592.78
  6. Step 6: Final answer
    x = 433,551.08

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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.