Home / 500,330.08-690,442.12-285,466.24

Finding the Fourth Proportional to 500,330.08, 690,442.12 and 285,466.24

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Solution

The fourth proportional to 500,330.08, 690,442.12 and 285,466.24 is: 393,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,330.08 : 690,442.12 = 285,466.24 : x
  2. Step 2: Convert to fraction form
    500,330.08/690,442.12 = 285,466.24/x
  3. Step 3: Cross multiply
    500,330.08x = 690,442.12 × 285,466.24
  4. Step 4: Simplify right side
    500,330.08x = 197,097,915,934.03
  5. Step 5: Solve for x
    x = 197,097,915,934.03/500,330.08
  6. Step 6: Final answer
    x = 393,935.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.