Home / 845,858.16-1,269,282.96-340,340.40

Finding the Fourth Proportional to 845,858.16, 1,269,282.96 and 340,340.40

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Solution

The fourth proportional to 845,858.16, 1,269,282.96 and 340,340.40 is: 510,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,858.16 : 1,269,282.96 = 340,340.40 : x
  2. Step 2: Convert to fraction form
    845,858.16/1,269,282.96 = 340,340.40/x
  3. Step 3: Cross multiply
    845,858.16x = 1,269,282.96 × 340,340.40
  4. Step 4: Simplify right side
    845,858.16x = 431,988,270,319.58
  5. Step 5: Solve for x
    x = 431,988,270,319.58/845,858.16
  6. Step 6: Final answer
    x = 510,710.06

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1.5x scale

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.