Home / 1,470,216.40-2,203,686.20-839,432.40

Finding the Fourth Proportional to 1,470,216.40, 2,203,686.20 and 839,432.40

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Solution

The fourth proportional to 1,470,216.40, 2,203,686.20 and 839,432.40 is: 1,258,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470,216.40 : 2,203,686.20 = 839,432.40 : x
  2. Step 2: Convert to fraction form
    1,470,216.40/2,203,686.20 = 839,432.40/x
  3. Step 3: Cross multiply
    1,470,216.40x = 2,203,686.20 × 839,432.40
  4. Step 4: Simplify right side
    1,470,216.40x = 1,849,845,595,712.88
  5. Step 5: Solve for x
    x = 1,849,845,595,712.88/1,470,216.40
  6. Step 6: Final answer
    x = 1,258,213.14

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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.