Home / 1,316,430.10-1,970,708.55-783,676.90

Finding the Fourth Proportional to 1,316,430.10, 1,970,708.55 and 783,676.90

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Solution

The fourth proportional to 1,316,430.10, 1,970,708.55 and 783,676.90 is: 1,173,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,430.10 : 1,970,708.55 = 783,676.90 : x
  2. Step 2: Convert to fraction form
    1,316,430.10/1,970,708.55 = 783,676.90/x
  3. Step 3: Cross multiply
    1,316,430.10x = 1,970,708.55 × 783,676.90
  4. Step 4: Simplify right side
    1,316,430.10x = 1,544,398,767,267.50
  5. Step 5: Solve for x
    x = 1,544,398,767,267.50/1,316,430.10
  6. Step 6: Final answer
    x = 1,173,171.87

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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.