Home / 1,188,981.80-1,783,472.70-390,070.70

Finding the Fourth Proportional to 1,188,981.80, 1,783,472.70 and 390,070.70

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Solution

The fourth proportional to 1,188,981.80, 1,783,472.70 and 390,070.70 is: 585,106.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,981.80 : 1,783,472.70 = 390,070.70 : x
  2. Step 2: Convert to fraction form
    1,188,981.80/1,783,472.70 = 390,070.70/x
  3. Step 3: Cross multiply
    1,188,981.80x = 1,783,472.70 × 390,070.70
  4. Step 4: Simplify right side
    1,188,981.80x = 695,680,444,519.89
  5. Step 5: Solve for x
    x = 695,680,444,519.89/1,188,981.80
  6. Step 6: Final answer
    x = 585,106.05

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Similar ratio
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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.