Home / 780,064.60-1,076,468.54-435,903.36

Finding the Fourth Proportional to 780,064.60, 1,076,468.54 and 435,903.36

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Solution

The fourth proportional to 780,064.60, 1,076,468.54 and 435,903.36 is: 601,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,064.60 : 1,076,468.54 = 435,903.36 : x
  2. Step 2: Convert to fraction form
    780,064.60/1,076,468.54 = 435,903.36/x
  3. Step 3: Cross multiply
    780,064.60x = 1,076,468.54 × 435,903.36
  4. Step 4: Simplify right side
    780,064.60x = 469,236,251,845.37
  5. Step 5: Solve for x
    x = 469,236,251,845.37/780,064.60
  6. Step 6: Final answer
    x = 601,535.12

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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.