Home / 1,347,531.70-2,021,297.55-638,943.70

Finding the Fourth Proportional to 1,347,531.70, 2,021,297.55 and 638,943.70

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Solution

The fourth proportional to 1,347,531.70, 2,021,297.55 and 638,943.70 is: 958,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,531.70 : 2,021,297.55 = 638,943.70 : x
  2. Step 2: Convert to fraction form
    1,347,531.70/2,021,297.55 = 638,943.70/x
  3. Step 3: Cross multiply
    1,347,531.70x = 2,021,297.55 × 638,943.70
  4. Step 4: Simplify right side
    1,347,531.70x = 1,291,495,335,397.93
  5. Step 5: Solve for x
    x = 1,291,495,335,397.93/1,347,531.70
  6. Step 6: Final answer
    x = 958,415.55

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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.