Home / 778,384.85-1,167,577.28-498,448.85

Finding the Fourth Proportional to 778,384.85, 1,167,577.28 and 498,448.85

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Solution

The fourth proportional to 778,384.85, 1,167,577.28 and 498,448.85 is: 747,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,384.85 : 1,167,577.28 = 498,448.85 : x
  2. Step 2: Convert to fraction form
    778,384.85/1,167,577.28 = 498,448.85/x
  3. Step 3: Cross multiply
    778,384.85x = 1,167,577.28 × 498,448.85
  4. Step 4: Simplify right side
    778,384.85x = 581,977,550,009.88
  5. Step 5: Solve for x
    x = 581,977,550,009.88/778,384.85
  6. Step 6: Final answer
    x = 747,673.28

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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.