Home / 1,445,429.12-2,168,883.84-688,127.36

Finding the Fourth Proportional to 1,445,429.12, 2,168,883.84 and 688,127.36

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Solution

The fourth proportional to 1,445,429.12, 2,168,883.84 and 688,127.36 is: 1,032,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,429.12 : 2,168,883.84 = 688,127.36 : x
  2. Step 2: Convert to fraction form
    1,445,429.12/2,168,883.84 = 688,127.36/x
  3. Step 3: Cross multiply
    1,445,429.12x = 2,168,883.84 × 688,127.36
  4. Step 4: Simplify right side
    1,445,429.12x = 1,492,468,310,965.86
  5. Step 5: Solve for x
    x = 1,492,468,310,965.86/1,445,429.12
  6. Step 6: Final answer
    x = 1,032,543.41

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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.