Home / 1,425,628.40-2,135,461.80-668,116.40

Finding the Fourth Proportional to 1,425,628.40, 2,135,461.80 and 668,116.40

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Solution

The fourth proportional to 1,425,628.40, 2,135,461.80 and 668,116.40 is: 1,000,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,628.40 : 2,135,461.80 = 668,116.40 : x
  2. Step 2: Convert to fraction form
    1,425,628.40/2,135,461.80 = 668,116.40/x
  3. Step 3: Cross multiply
    1,425,628.40x = 2,135,461.80 × 668,116.40
  4. Step 4: Simplify right side
    1,425,628.40x = 1,426,737,050,153.52
  5. Step 5: Solve for x
    x = 1,426,737,050,153.52/1,425,628.40
  6. Step 6: Final answer
    x = 1,000,777.66

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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.