Home / 1,351,619.51-1,865,220.72-731,411.10

Finding the Fourth Proportional to 1,351,619.51, 1,865,220.72 and 731,411.10

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Solution

The fourth proportional to 1,351,619.51, 1,865,220.72 and 731,411.10 is: 1,009,339.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,619.51 : 1,865,220.72 = 731,411.10 : x
  2. Step 2: Convert to fraction form
    1,351,619.51/1,865,220.72 = 731,411.10/x
  3. Step 3: Cross multiply
    1,351,619.51x = 1,865,220.72 × 731,411.10
  4. Step 4: Simplify right side
    1,351,619.51x = 1,364,243,138,165.94
  5. Step 5: Solve for x
    x = 1,364,243,138,165.94/1,351,619.51
  6. Step 6: Final answer
    x = 1,009,339.63

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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.