Home / 1,029,426.21-1,420,267.68-621,373.02

Finding the Fourth Proportional to 1,029,426.21, 1,420,267.68 and 621,373.02

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Solution

The fourth proportional to 1,029,426.21, 1,420,267.68 and 621,373.02 is: 857,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,426.21 : 1,420,267.68 = 621,373.02 : x
  2. Step 2: Convert to fraction form
    1,029,426.21/1,420,267.68 = 621,373.02/x
  3. Step 3: Cross multiply
    1,029,426.21x = 1,420,267.68 × 621,373.02
  4. Step 4: Simplify right side
    1,029,426.21x = 882,516,017,529.99
  5. Step 5: Solve for x
    x = 882,516,017,529.99/1,029,426.21
  6. Step 6: Final answer
    x = 857,289.24

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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.