Home / 891,438.63-1,230,178.04-483,539.45

Finding the Fourth Proportional to 891,438.63, 1,230,178.04 and 483,539.45

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Solution

The fourth proportional to 891,438.63, 1,230,178.04 and 483,539.45 is: 667,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,438.63 : 1,230,178.04 = 483,539.45 : x
  2. Step 2: Convert to fraction form
    891,438.63/1,230,178.04 = 483,539.45/x
  3. Step 3: Cross multiply
    891,438.63x = 1,230,178.04 × 483,539.45
  4. Step 4: Simplify right side
    891,438.63x = 594,839,604,295.09
  5. Step 5: Solve for x
    x = 594,839,604,295.09/891,438.63
  6. Step 6: Final answer
    x = 667,280.49

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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.