Home / 980,192.20-1,470,288.30-315,411.40

Finding the Fourth Proportional to 980,192.20, 1,470,288.30 and 315,411.40

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Solution

The fourth proportional to 980,192.20, 1,470,288.30 and 315,411.40 is: 473,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,192.20 : 1,470,288.30 = 315,411.40 : x
  2. Step 2: Convert to fraction form
    980,192.20/1,470,288.30 = 315,411.40/x
  3. Step 3: Cross multiply
    980,192.20x = 1,470,288.30 × 315,411.40
  4. Step 4: Simplify right side
    980,192.20x = 463,745,691,106.62
  5. Step 5: Solve for x
    x = 463,745,691,106.62/980,192.20
  6. Step 6: Final answer
    x = 473,117.10

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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.