Home / 1,053,112.28-1,453,302.02-645,214.91

Finding the Fourth Proportional to 1,053,112.28, 1,453,302.02 and 645,214.91

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Solution

The fourth proportional to 1,053,112.28, 1,453,302.02 and 645,214.91 is: 890,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,112.28 : 1,453,302.02 = 645,214.91 : x
  2. Step 2: Convert to fraction form
    1,053,112.28/1,453,302.02 = 645,214.91/x
  3. Step 3: Cross multiply
    1,053,112.28x = 1,453,302.02 × 645,214.91
  4. Step 4: Simplify right side
    1,053,112.28x = 937,692,121,544.53
  5. Step 5: Solve for x
    x = 937,692,121,544.53/1,053,112.28
  6. Step 6: Final answer
    x = 890,400.90

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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.