Home / 455,491.20-683,236.80-433,718.40

Finding the Fourth Proportional to 455,491.20, 683,236.80 and 433,718.40

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Solution

The fourth proportional to 455,491.20, 683,236.80 and 433,718.40 is: 650,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,491.20 : 683,236.80 = 433,718.40 : x
  2. Step 2: Convert to fraction form
    455,491.20/683,236.80 = 433,718.40/x
  3. Step 3: Cross multiply
    455,491.20x = 683,236.80 × 433,718.40
  4. Step 4: Simplify right side
    455,491.20x = 296,332,371,717.12
  5. Step 5: Solve for x
    x = 296,332,371,717.12/455,491.20
  6. Step 6: Final answer
    x = 650,577.60

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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.