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Finding the Fourth Proportional to 699,899.70, 965,608.98 and 458,320.05

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Solution

The fourth proportional to 699,899.70, 965,608.98 and 458,320.05 is: 632,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,899.70 : 965,608.98 = 458,320.05 : x
  2. Step 2: Convert to fraction form
    699,899.70/965,608.98 = 458,320.05/x
  3. Step 3: Cross multiply
    699,899.70x = 965,608.98 × 458,320.05
  4. Step 4: Simplify right side
    699,899.70x = 442,557,955,994.05
  5. Step 5: Solve for x
    x = 442,557,955,994.05/699,899.70
  6. Step 6: Final answer
    x = 632,316.25

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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.