Home / 1,287,210.70-1,930,068.34-488,056.29

Finding the Fourth Proportional to 1,287,210.70, 1,930,068.34 and 488,056.29

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Solution

The fourth proportional to 1,287,210.70, 1,930,068.34 and 488,056.29 is: 731,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,210.70 : 1,930,068.34 = 488,056.29 : x
  2. Step 2: Convert to fraction form
    1,287,210.70/1,930,068.34 = 488,056.29/x
  3. Step 3: Cross multiply
    1,287,210.70x = 1,930,068.34 × 488,056.29
  4. Step 4: Simplify right side
    1,287,210.70x = 941,981,993,466.86
  5. Step 5: Solve for x
    x = 941,981,993,466.86/1,287,210.70
  6. Step 6: Final answer
    x = 731,800.93

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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.