Home / 1,107,988.80-1,663,295.40-628,598.40

Finding the Fourth Proportional to 1,107,988.80, 1,663,295.40 and 628,598.40

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Solution

The fourth proportional to 1,107,988.80, 1,663,295.40 and 628,598.40 is: 943,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,988.80 : 1,663,295.40 = 628,598.40 : x
  2. Step 2: Convert to fraction form
    1,107,988.80/1,663,295.40 = 628,598.40/x
  3. Step 3: Cross multiply
    1,107,988.80x = 1,663,295.40 × 628,598.40
  4. Step 4: Simplify right side
    1,107,988.80x = 1,045,544,827,167.36
  5. Step 5: Solve for x
    x = 1,045,544,827,167.36/1,107,988.80
  6. Step 6: Final answer
    x = 943,642.05

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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.