Home / 787,457.55-1,181,358.59-255,032.40

Finding the Fourth Proportional to 787,457.55, 1,181,358.59 and 255,032.40

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Solution

The fourth proportional to 787,457.55, 1,181,358.59 and 255,032.40 is: 382,604.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,457.55 : 1,181,358.59 = 255,032.40 : x
  2. Step 2: Convert to fraction form
    787,457.55/1,181,358.59 = 255,032.40/x
  3. Step 3: Cross multiply
    787,457.55x = 1,181,358.59 × 255,032.40
  4. Step 4: Simplify right side
    787,457.55x = 301,284,710,763.06
  5. Step 5: Solve for x
    x = 301,284,710,763.06/787,457.55
  6. Step 6: Final answer
    x = 382,604.39

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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.