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Finding the Fourth Proportional to 607,051.70, 910,577.55 and 447,619.40

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Solution

The fourth proportional to 607,051.70, 910,577.55 and 447,619.40 is: 671,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,051.70 : 910,577.55 = 447,619.40 : x
  2. Step 2: Convert to fraction form
    607,051.70/910,577.55 = 447,619.40/x
  3. Step 3: Cross multiply
    607,051.70x = 910,577.55 × 447,619.40
  4. Step 4: Simplify right side
    607,051.70x = 407,592,176,584.47
  5. Step 5: Solve for x
    x = 407,592,176,584.47/607,051.70
  6. Step 6: Final answer
    x = 671,429.10

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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.