Home / 699,263.18-965,426.77-478,869.39

Finding the Fourth Proportional to 699,263.18, 965,426.77 and 478,869.39

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Solution

The fourth proportional to 699,263.18, 965,426.77 and 478,869.39 is: 661,143.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,263.18 : 965,426.77 = 478,869.39 : x
  2. Step 2: Convert to fraction form
    699,263.18/965,426.77 = 478,869.39/x
  3. Step 3: Cross multiply
    699,263.18x = 965,426.77 × 478,869.39
  4. Step 4: Simplify right side
    699,263.18x = 462,313,333,100.24
  5. Step 5: Solve for x
    x = 462,313,333,100.24/699,263.18
  6. Step 6: Final answer
    x = 661,143.54

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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.