Home / 785,645.16-1,178,984.52-430,908

Finding the Fourth Proportional to 785,645.16, 1,178,984.52 and 430,908

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Solution

The fourth proportional to 785,645.16, 1,178,984.52 and 430,908 is: 646,645.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,645.16 : 1,178,984.52 = 430,908 : x
  2. Step 2: Convert to fraction form
    785,645.16/1,178,984.52 = 430,908/x
  3. Step 3: Cross multiply
    785,645.16x = 1,178,984.52 × 430,908
  4. Step 4: Simplify right side
    785,645.16x = 508,033,861,544.16
  5. Step 5: Solve for x
    x = 508,033,861,544.16/785,645.16
  6. Step 6: Final answer
    x = 646,645.44

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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.