Home / 1,642,511.32-2,266,441.63-917,266.57

Finding the Fourth Proportional to 1,642,511.32, 2,266,441.63 and 917,266.57

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Solution

The fourth proportional to 1,642,511.32, 2,266,441.63 and 917,266.57 is: 1,265,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,511.32 : 2,266,441.63 = 917,266.57 : x
  2. Step 2: Convert to fraction form
    1,642,511.32/2,266,441.63 = 917,266.57/x
  3. Step 3: Cross multiply
    1,642,511.32x = 2,266,441.63 × 917,266.57
  4. Step 4: Simplify right side
    1,642,511.32x = 2,078,931,140,055.31
  5. Step 5: Solve for x
    x = 2,078,931,140,055.31/1,642,511.32
  6. Step 6: Final answer
    x = 1,265,702.78

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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.