Home / 785,987.80-1,176,648.90-520,048.60

Finding the Fourth Proportional to 785,987.80, 1,176,648.90 and 520,048.60

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Solution

The fourth proportional to 785,987.80, 1,176,648.90 and 520,048.60 is: 778,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,987.80 : 1,176,648.90 = 520,048.60 : x
  2. Step 2: Convert to fraction form
    785,987.80/1,176,648.90 = 520,048.60/x
  3. Step 3: Cross multiply
    785,987.80x = 1,176,648.90 × 520,048.60
  4. Step 4: Simplify right side
    785,987.80x = 611,914,613,136.54
  5. Step 5: Solve for x
    x = 611,914,613,136.54/785,987.80
  6. Step 6: Final answer
    x = 778,529.40

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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.