Home / 1,535,726.40-2,120,069.72-955,136.70

Finding the Fourth Proportional to 1,535,726.40, 2,120,069.72 and 955,136.70

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Solution

The fourth proportional to 1,535,726.40, 2,120,069.72 and 955,136.70 is: 1,318,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,726.40 : 2,120,069.72 = 955,136.70 : x
  2. Step 2: Convert to fraction form
    1,535,726.40/2,120,069.72 = 955,136.70/x
  3. Step 3: Cross multiply
    1,535,726.40x = 2,120,069.72 × 955,136.70
  4. Step 4: Simplify right side
    1,535,726.40x = 2,024,956,396,130.72
  5. Step 5: Solve for x
    x = 2,024,956,396,130.72/1,535,726.40
  6. Step 6: Final answer
    x = 1,318,565.86

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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.