Home / 1,276,871.95-1,915,588.13-378,384

Finding the Fourth Proportional to 1,276,871.95, 1,915,588.13 and 378,384

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Solution

The fourth proportional to 1,276,871.95, 1,915,588.13 and 378,384 is: 567,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,871.95 : 1,915,588.13 = 378,384 : x
  2. Step 2: Convert to fraction form
    1,276,871.95/1,915,588.13 = 378,384/x
  3. Step 3: Cross multiply
    1,276,871.95x = 1,915,588.13 × 378,384
  4. Step 4: Simplify right side
    1,276,871.95x = 724,827,897,090
  5. Step 5: Solve for x
    x = 724,827,897,090/1,276,871.95
  6. Step 6: Final answer
    x = 567,659.04

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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.