Home / 1,258,210.80-1,887,316.20-628,354.80

Finding the Fourth Proportional to 1,258,210.80, 1,887,316.20 and 628,354.80

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Solution

The fourth proportional to 1,258,210.80, 1,887,316.20 and 628,354.80 is: 942,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,210.80 : 1,887,316.20 = 628,354.80 : x
  2. Step 2: Convert to fraction form
    1,258,210.80/1,887,316.20 = 628,354.80/x
  3. Step 3: Cross multiply
    1,258,210.80x = 1,887,316.20 × 628,354.80
  4. Step 4: Simplify right side
    1,258,210.80x = 1,185,904,193,387.76
  5. Step 5: Solve for x
    x = 1,185,904,193,387.76/1,258,210.80
  6. Step 6: Final answer
    x = 942,532.20

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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.