Home / 851,287.72-1,276,931.58-290,327.08

Finding the Fourth Proportional to 851,287.72, 1,276,931.58 and 290,327.08

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Solution

The fourth proportional to 851,287.72, 1,276,931.58 and 290,327.08 is: 435,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,287.72 : 1,276,931.58 = 290,327.08 : x
  2. Step 2: Convert to fraction form
    851,287.72/1,276,931.58 = 290,327.08/x
  3. Step 3: Cross multiply
    851,287.72x = 1,276,931.58 × 290,327.08
  4. Step 4: Simplify right side
    851,287.72x = 370,727,816,981.19
  5. Step 5: Solve for x
    x = 370,727,816,981.19/851,287.72
  6. Step 6: Final answer
    x = 435,490.62

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1.5x scale

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.