Home / 1,187,688.64-1,781,613.60-477,716.80

Finding the Fourth Proportional to 1,187,688.64, 1,781,613.60 and 477,716.80

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Solution

The fourth proportional to 1,187,688.64, 1,781,613.60 and 477,716.80 is: 716,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,688.64 : 1,781,613.60 = 477,716.80 : x
  2. Step 2: Convert to fraction form
    1,187,688.64/1,781,613.60 = 477,716.80/x
  3. Step 3: Cross multiply
    1,187,688.64x = 1,781,613.60 × 477,716.80
  4. Step 4: Simplify right side
    1,187,688.64x = 851,106,747,828.48
  5. Step 5: Solve for x
    x = 851,106,747,828.48/1,187,688.64
  6. Step 6: Final answer
    x = 716,607.64

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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.