Home / 712,842.40-1,069,551.60-313,559.20

Finding the Fourth Proportional to 712,842.40, 1,069,551.60 and 313,559.20

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Solution

The fourth proportional to 712,842.40, 1,069,551.60 and 313,559.20 is: 470,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,842.40 : 1,069,551.60 = 313,559.20 : x
  2. Step 2: Convert to fraction form
    712,842.40/1,069,551.60 = 313,559.20/x
  3. Step 3: Cross multiply
    712,842.40x = 1,069,551.60 × 313,559.20
  4. Step 4: Simplify right side
    712,842.40x = 335,367,744,054.72
  5. Step 5: Solve for x
    x = 335,367,744,054.72/712,842.40
  6. Step 6: Final answer
    x = 470,465.48

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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.