Home / 1,560,127.80-2,340,191.70-761,921.40

Finding the Fourth Proportional to 1,560,127.80, 2,340,191.70 and 761,921.40

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Solution

The fourth proportional to 1,560,127.80, 2,340,191.70 and 761,921.40 is: 1,142,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,127.80 : 2,340,191.70 = 761,921.40 : x
  2. Step 2: Convert to fraction form
    1,560,127.80/2,340,191.70 = 761,921.40/x
  3. Step 3: Cross multiply
    1,560,127.80x = 2,340,191.70 × 761,921.40
  4. Step 4: Simplify right side
    1,560,127.80x = 1,783,042,136,332.38
  5. Step 5: Solve for x
    x = 1,783,042,136,332.38/1,560,127.80
  6. Step 6: Final answer
    x = 1,142,882.10

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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.