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Finding the Fourth Proportional to 659,849.80, 989,774.70 and 556,169.80

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Solution

The fourth proportional to 659,849.80, 989,774.70 and 556,169.80 is: 834,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,849.80 : 989,774.70 = 556,169.80 : x
  2. Step 2: Convert to fraction form
    659,849.80/989,774.70 = 556,169.80/x
  3. Step 3: Cross multiply
    659,849.80x = 989,774.70 × 556,169.80
  4. Step 4: Simplify right side
    659,849.80x = 550,482,796,944.06
  5. Step 5: Solve for x
    x = 550,482,796,944.06/659,849.80
  6. Step 6: Final answer
    x = 834,254.70

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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.