Home / 648,687.49-895,183.38-354,337.45

Finding the Fourth Proportional to 648,687.49, 895,183.38 and 354,337.45

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Solution

The fourth proportional to 648,687.49, 895,183.38 and 354,337.45 is: 488,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,687.49 : 895,183.38 = 354,337.45 : x
  2. Step 2: Convert to fraction form
    648,687.49/895,183.38 = 354,337.45/x
  3. Step 3: Cross multiply
    648,687.49x = 895,183.38 × 354,337.45
  4. Step 4: Simplify right side
    648,687.49x = 317,196,996,151.58
  5. Step 5: Solve for x
    x = 317,196,996,151.58/648,687.49
  6. Step 6: Final answer
    x = 488,982.76

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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.