Home / 1,038,492.20-1,557,738.30-478,620.20

Finding the Fourth Proportional to 1,038,492.20, 1,557,738.30 and 478,620.20

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Solution

The fourth proportional to 1,038,492.20, 1,557,738.30 and 478,620.20 is: 717,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,492.20 : 1,557,738.30 = 478,620.20 : x
  2. Step 2: Convert to fraction form
    1,038,492.20/1,557,738.30 = 478,620.20/x
  3. Step 3: Cross multiply
    1,038,492.20x = 1,557,738.30 × 478,620.20
  4. Step 4: Simplify right side
    1,038,492.20x = 745,565,016,693.66
  5. Step 5: Solve for x
    x = 745,565,016,693.66/1,038,492.20
  6. Step 6: Final answer
    x = 717,930.30

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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.