Home / 500,095.08-689,960.40-285,080.16

Finding the Fourth Proportional to 500,095.08, 689,960.40 and 285,080.16

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Solution

The fourth proportional to 500,095.08, 689,960.40 and 285,080.16 is: 393,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,095.08 : 689,960.40 = 285,080.16 : x
  2. Step 2: Convert to fraction form
    500,095.08/689,960.40 = 285,080.16/x
  3. Step 3: Cross multiply
    500,095.08x = 689,960.40 × 285,080.16
  4. Step 4: Simplify right side
    500,095.08x = 196,694,021,225.66
  5. Step 5: Solve for x
    x = 196,694,021,225.66/500,095.08
  6. Step 6: Final answer
    x = 393,313.25

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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.