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Finding the Fourth Proportional to 617,959.80, 926,075.70 and 491,815.80

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Solution

The fourth proportional to 617,959.80, 926,075.70 and 491,815.80 is: 737,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,959.80 : 926,075.70 = 491,815.80 : x
  2. Step 2: Convert to fraction form
    617,959.80/926,075.70 = 491,815.80/x
  3. Step 3: Cross multiply
    617,959.80x = 926,075.70 × 491,815.80
  4. Step 4: Simplify right side
    617,959.80x = 455,458,661,256.06
  5. Step 5: Solve for x
    x = 455,458,661,256.06/617,959.80
  6. Step 6: Final answer
    x = 737,036.07

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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.