Home / 1,008,478.59-1,512,714.74-316,098.28

Finding the Fourth Proportional to 1,008,478.59, 1,512,714.74 and 316,098.28

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Solution

The fourth proportional to 1,008,478.59, 1,512,714.74 and 316,098.28 is: 474,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,478.59 : 1,512,714.74 = 316,098.28 : x
  2. Step 2: Convert to fraction form
    1,008,478.59/1,512,714.74 = 316,098.28/x
  3. Step 3: Cross multiply
    1,008,478.59x = 1,512,714.74 × 316,098.28
  4. Step 4: Simplify right side
    1,008,478.59x = 478,166,529,533.10
  5. Step 5: Solve for x
    x = 478,166,529,533.10/1,008,478.59
  6. Step 6: Final answer
    x = 474,146.44

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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.