Home / 1,312,019.76-1,810,642.41-731,243.16

Finding the Fourth Proportional to 1,312,019.76, 1,810,642.41 and 731,243.16

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Solution

The fourth proportional to 1,312,019.76, 1,810,642.41 and 731,243.16 is: 1,009,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,019.76 : 1,810,642.41 = 731,243.16 : x
  2. Step 2: Convert to fraction form
    1,312,019.76/1,810,642.41 = 731,243.16/x
  3. Step 3: Cross multiply
    1,312,019.76x = 1,810,642.41 × 731,243.16
  4. Step 4: Simplify right side
    1,312,019.76x = 1,324,019,877,518.42
  5. Step 5: Solve for x
    x = 1,324,019,877,518.42/1,312,019.76
  6. Step 6: Final answer
    x = 1,009,146.29

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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.