Home / 788,658.40-1,182,987.60-220,038.40

Finding the Fourth Proportional to 788,658.40, 1,182,987.60 and 220,038.40

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Solution

The fourth proportional to 788,658.40, 1,182,987.60 and 220,038.40 is: 330,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,658.40 : 1,182,987.60 = 220,038.40 : x
  2. Step 2: Convert to fraction form
    788,658.40/1,182,987.60 = 220,038.40/x
  3. Step 3: Cross multiply
    788,658.40x = 1,182,987.60 × 220,038.40
  4. Step 4: Simplify right side
    788,658.40x = 260,302,698,723.84
  5. Step 5: Solve for x
    x = 260,302,698,723.84/788,658.40
  6. Step 6: Final answer
    x = 330,057.60

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Double scale
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Similar ratio
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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.