Home / 780,428.21-1,169,417.60-464,712.89

Finding the Fourth Proportional to 780,428.21, 1,169,417.60 and 464,712.89

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Solution

The fourth proportional to 780,428.21, 1,169,417.60 and 464,712.89 is: 696,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,428.21 : 1,169,417.60 = 464,712.89 : x
  2. Step 2: Convert to fraction form
    780,428.21/1,169,417.60 = 464,712.89/x
  3. Step 3: Cross multiply
    780,428.21x = 1,169,417.60 × 464,712.89
  4. Step 4: Simplify right side
    780,428.21x = 543,443,430,189.30
  5. Step 5: Solve for x
    x = 543,443,430,189.30/780,428.21
  6. Step 6: Final answer
    x = 696,340.06

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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.