Home / 684,868.30-945,337.71-480,968.62

Finding the Fourth Proportional to 684,868.30, 945,337.71 and 480,968.62

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Solution

The fourth proportional to 684,868.30, 945,337.71 and 480,968.62 is: 663,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,868.30 : 945,337.71 = 480,968.62 : x
  2. Step 2: Convert to fraction form
    684,868.30/945,337.71 = 480,968.62/x
  3. Step 3: Cross multiply
    684,868.30x = 945,337.71 × 480,968.62
  4. Step 4: Simplify right side
    684,868.30x = 454,677,773,812.66
  5. Step 5: Solve for x
    x = 454,677,773,812.66/684,868.30
  6. Step 6: Final answer
    x = 663,890.81

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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.