Home / 785,661.54-1,179,009.08-430,924.38

Finding the Fourth Proportional to 785,661.54, 1,179,009.08 and 430,924.38

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Solution

The fourth proportional to 785,661.54, 1,179,009.08 and 430,924.38 is: 646,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,661.54 : 1,179,009.08 = 430,924.38 : x
  2. Step 2: Convert to fraction form
    785,661.54/1,179,009.08 = 430,924.38/x
  3. Step 3: Cross multiply
    785,661.54x = 1,179,009.08 × 430,924.38
  4. Step 4: Simplify right side
    785,661.54x = 508,063,756,813.37
  5. Step 5: Solve for x
    x = 508,063,756,813.37/785,661.54
  6. Step 6: Final answer
    x = 646,670.01

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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.