Home / 1,392,602.20-2,088,611.70-683,139.40

Finding the Fourth Proportional to 1,392,602.20, 2,088,611.70 and 683,139.40

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Solution

The fourth proportional to 1,392,602.20, 2,088,611.70 and 683,139.40 is: 1,024,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,602.20 : 2,088,611.70 = 683,139.40 : x
  2. Step 2: Convert to fraction form
    1,392,602.20/2,088,611.70 = 683,139.40/x
  3. Step 3: Cross multiply
    1,392,602.20x = 2,088,611.70 × 683,139.40
  4. Step 4: Simplify right side
    1,392,602.20x = 1,426,812,943,570.98
  5. Step 5: Solve for x
    x = 1,426,812,943,570.98/1,392,602.20
  6. Step 6: Final answer
    x = 1,024,566.06

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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.