Home / 1,187,299.08-1,781,115.08-388,643.94

Finding the Fourth Proportional to 1,187,299.08, 1,781,115.08 and 388,643.94

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Solution

The fourth proportional to 1,187,299.08, 1,781,115.08 and 388,643.94 is: 583,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,299.08 : 1,781,115.08 = 388,643.94 : x
  2. Step 2: Convert to fraction form
    1,187,299.08/1,781,115.08 = 388,643.94/x
  3. Step 3: Cross multiply
    1,187,299.08x = 1,781,115.08 × 388,643.94
  4. Step 4: Simplify right side
    1,187,299.08x = 692,219,580,341.40
  5. Step 5: Solve for x
    x = 692,219,580,341.40/1,187,299.08
  6. Step 6: Final answer
    x = 583,020.40

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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.