Home / 691,808.80-1,036,935.60-354,719.20

Finding the Fourth Proportional to 691,808.80, 1,036,935.60 and 354,719.20

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Solution

The fourth proportional to 691,808.80, 1,036,935.60 and 354,719.20 is: 531,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,808.80 : 1,036,935.60 = 354,719.20 : x
  2. Step 2: Convert to fraction form
    691,808.80/1,036,935.60 = 354,719.20/x
  3. Step 3: Cross multiply
    691,808.80x = 1,036,935.60 × 354,719.20
  4. Step 4: Simplify right side
    691,808.80x = 367,820,966,483.52
  5. Step 5: Solve for x
    x = 367,820,966,483.52/691,808.80
  6. Step 6: Final answer
    x = 531,680.09

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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.