Home / 928,340.74-1,390,147.80-611,838.10

Finding the Fourth Proportional to 928,340.74, 1,390,147.80 and 611,838.10

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Solution

The fourth proportional to 928,340.74, 1,390,147.80 and 611,838.10 is: 916,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,340.74 : 1,390,147.80 = 611,838.10 : x
  2. Step 2: Convert to fraction form
    928,340.74/1,390,147.80 = 611,838.10/x
  3. Step 3: Cross multiply
    928,340.74x = 1,390,147.80 × 611,838.10
  4. Step 4: Simplify right side
    928,340.74x = 850,545,388,671.18
  5. Step 5: Solve for x
    x = 850,545,388,671.18/928,340.74
  6. Step 6: Final answer
    x = 916,199.57

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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.