Home / 500,345.10-690,467.93-270,900.55

Finding the Fourth Proportional to 500,345.10, 690,467.93 and 270,900.55

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Solution

The fourth proportional to 500,345.10, 690,467.93 and 270,900.55 is: 373,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,345.10 : 690,467.93 = 270,900.55 : x
  2. Step 2: Convert to fraction form
    500,345.10/690,467.93 = 270,900.55/x
  3. Step 3: Cross multiply
    500,345.10x = 690,467.93 × 270,900.55
  4. Step 4: Simplify right side
    500,345.10x = 187,048,137,187.52
  5. Step 5: Solve for x
    x = 187,048,137,187.52/500,345.10
  6. Step 6: Final answer
    x = 373,838.25

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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.