Home / 1,868,035.07-2,802,126.42-520,315.46

Finding the Fourth Proportional to 1,868,035.07, 2,802,126.42 and 520,315.46

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Solution

The fourth proportional to 1,868,035.07, 2,802,126.42 and 520,315.46 is: 780,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,035.07 : 2,802,126.42 = 520,315.46 : x
  2. Step 2: Convert to fraction form
    1,868,035.07/2,802,126.42 = 520,315.46/x
  3. Step 3: Cross multiply
    1,868,035.07x = 2,802,126.42 × 520,315.46
  4. Step 4: Simplify right side
    1,868,035.07x = 1,457,989,683,189.82
  5. Step 5: Solve for x
    x = 1,457,989,683,189.82/1,868,035.07
  6. Step 6: Final answer
    x = 780,493.74

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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.