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Finding the Fourth Proportional to 570,001.48, 786,573.30 and 311,872.84

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Solution

The fourth proportional to 570,001.48, 786,573.30 and 311,872.84 is: 430,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,001.48 : 786,573.30 = 311,872.84 : x
  2. Step 2: Convert to fraction form
    570,001.48/786,573.30 = 311,872.84/x
  3. Step 3: Cross multiply
    570,001.48x = 786,573.30 × 311,872.84
  4. Step 4: Simplify right side
    570,001.48x = 245,310,848,939.17
  5. Step 5: Solve for x
    x = 245,310,848,939.17/570,001.48
  6. Step 6: Final answer
    x = 430,368.79

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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.