Home / 1,457,705.42-2,011,636.71-813,167.36

Finding the Fourth Proportional to 1,457,705.42, 2,011,636.71 and 813,167.36

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Solution

The fourth proportional to 1,457,705.42, 2,011,636.71 and 813,167.36 is: 1,122,172.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,705.42 : 2,011,636.71 = 813,167.36 : x
  2. Step 2: Convert to fraction form
    1,457,705.42/2,011,636.71 = 813,167.36/x
  3. Step 3: Cross multiply
    1,457,705.42x = 2,011,636.71 × 813,167.36
  4. Step 4: Simplify right side
    1,457,705.42x = 1,635,797,307,185.86
  5. Step 5: Solve for x
    x = 1,635,797,307,185.86/1,457,705.42
  6. Step 6: Final answer
    x = 1,122,172.76

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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.