Home / 788,225.93-1,087,928.84-516,135.80

Finding the Fourth Proportional to 788,225.93, 1,087,928.84 and 516,135.80

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Solution

The fourth proportional to 788,225.93, 1,087,928.84 and 516,135.80 is: 712,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,225.93 : 1,087,928.84 = 516,135.80 : x
  2. Step 2: Convert to fraction form
    788,225.93/1,087,928.84 = 516,135.80/x
  3. Step 3: Cross multiply
    788,225.93x = 1,087,928.84 × 516,135.80
  4. Step 4: Simplify right side
    788,225.93x = 561,519,014,156.15
  5. Step 5: Solve for x
    x = 561,519,014,156.15/788,225.93
  6. Step 6: Final answer
    x = 712,383.34

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Double scale
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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.