Home / 785,423.35-1,178,146.86-299,132.41

Finding the Fourth Proportional to 785,423.35, 1,178,146.86 and 299,132.41

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Solution

The fourth proportional to 785,423.35, 1,178,146.86 and 299,132.41 is: 448,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,423.35 : 1,178,146.86 = 299,132.41 : x
  2. Step 2: Convert to fraction form
    785,423.35/1,178,146.86 = 299,132.41/x
  3. Step 3: Cross multiply
    785,423.35x = 1,178,146.86 × 299,132.41
  4. Step 4: Simplify right side
    785,423.35x = 352,421,909,565.73
  5. Step 5: Solve for x
    x = 352,421,909,565.73/785,423.35
  6. Step 6: Final answer
    x = 448,703.12

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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.