Home / 1,276,000.40-1,914,259.80-434,637.20

Finding the Fourth Proportional to 1,276,000.40, 1,914,259.80 and 434,637.20

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Solution

The fourth proportional to 1,276,000.40, 1,914,259.80 and 434,637.20 is: 652,044.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,000.40 : 1,914,259.80 = 434,637.20 : x
  2. Step 2: Convert to fraction form
    1,276,000.40/1,914,259.80 = 434,637.20/x
  3. Step 3: Cross multiply
    1,276,000.40x = 1,914,259.80 × 434,637.20
  4. Step 4: Simplify right side
    1,276,000.40x = 832,008,519,544.56
  5. Step 5: Solve for x
    x = 832,008,519,544.56/1,276,000.40
  6. Step 6: Final answer
    x = 652,044.09

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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.