Home / 780,817.06-1,077,482.82-431,936.65

Finding the Fourth Proportional to 780,817.06, 1,077,482.82 and 431,936.65

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Solution

The fourth proportional to 780,817.06, 1,077,482.82 and 431,936.65 is: 596,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,817.06 : 1,077,482.82 = 431,936.65 : x
  2. Step 2: Convert to fraction form
    780,817.06/1,077,482.82 = 431,936.65/x
  3. Step 3: Cross multiply
    780,817.06x = 1,077,482.82 × 431,936.65
  4. Step 4: Simplify right side
    780,817.06x = 465,404,319,703.35
  5. Step 5: Solve for x
    x = 465,404,319,703.35/780,817.06
  6. Step 6: Final answer
    x = 596,047.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.