Home / 499,150.09-688,949.58-284,417.07

Finding the Fourth Proportional to 499,150.09, 688,949.58 and 284,417.07

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Solution

The fourth proportional to 499,150.09, 688,949.58 and 284,417.07 is: 392,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,150.09 : 688,949.58 = 284,417.07 : x
  2. Step 2: Convert to fraction form
    499,150.09/688,949.58 = 284,417.07/x
  3. Step 3: Cross multiply
    499,150.09x = 688,949.58 × 284,417.07
  4. Step 4: Simplify right side
    499,150.09x = 195,949,020,921.33
  5. Step 5: Solve for x
    x = 195,949,020,921.33/499,150.09
  6. Step 6: Final answer
    x = 392,565.33

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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.