Home / 712,980.20-1,069,316.70-313,620.20

Finding the Fourth Proportional to 712,980.20, 1,069,316.70 and 313,620.20

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Solution

The fourth proportional to 712,980.20, 1,069,316.70 and 313,620.20 is: 470,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,980.20 : 1,069,316.70 = 313,620.20 : x
  2. Step 2: Convert to fraction form
    712,980.20/1,069,316.70 = 313,620.20/x
  3. Step 3: Cross multiply
    712,980.20x = 1,069,316.70 × 313,620.20
  4. Step 4: Simplify right side
    712,980.20x = 335,359,317,317.34
  5. Step 5: Solve for x
    x = 335,359,317,317.34/712,980.20
  6. Step 6: Final answer
    x = 470,362.74

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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.