Home / 1,660,567.80-2,490,122.70-761,710.80

Finding the Fourth Proportional to 1,660,567.80, 2,490,122.70 and 761,710.80

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Solution

The fourth proportional to 1,660,567.80, 2,490,122.70 and 761,710.80 is: 1,142,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,567.80 : 2,490,122.70 = 761,710.80 : x
  2. Step 2: Convert to fraction form
    1,660,567.80/2,490,122.70 = 761,710.80/x
  3. Step 3: Cross multiply
    1,660,567.80x = 2,490,122.70 × 761,710.80
  4. Step 4: Simplify right side
    1,660,567.80x = 1,896,753,353,915.16
  5. Step 5: Solve for x
    x = 1,896,753,353,915.16/1,660,567.80
  6. Step 6: Final answer
    x = 1,142,231.80

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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.