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Finding the Fourth Proportional to 453,848.80, 679,160.40 and 395,327.20

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Solution

The fourth proportional to 453,848.80, 679,160.40 and 395,327.20 is: 591,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,848.80 : 679,160.40 = 395,327.20 : x
  2. Step 2: Convert to fraction form
    453,848.80/679,160.40 = 395,327.20/x
  3. Step 3: Cross multiply
    453,848.80x = 679,160.40 × 395,327.20
  4. Step 4: Simplify right side
    453,848.80x = 268,490,579,282.88
  5. Step 5: Solve for x
    x = 268,490,579,282.88/453,848.80
  6. Step 6: Final answer
    x = 591,585.96

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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.