Home / 1,470,023.40-2,205,035.10-628,660.20

Finding the Fourth Proportional to 1,470,023.40, 2,205,035.10 and 628,660.20

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Solution

The fourth proportional to 1,470,023.40, 2,205,035.10 and 628,660.20 is: 942,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470,023.40 : 2,205,035.10 = 628,660.20 : x
  2. Step 2: Convert to fraction form
    1,470,023.40/2,205,035.10 = 628,660.20/x
  3. Step 3: Cross multiply
    1,470,023.40x = 2,205,035.10 × 628,660.20
  4. Step 4: Simplify right side
    1,470,023.40x = 1,386,217,806,973.02
  5. Step 5: Solve for x
    x = 1,386,217,806,973.02/1,470,023.40
  6. Step 6: Final answer
    x = 942,990.30

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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.