Home / 851,292.72-1,276,939.08-290,332.08

Finding the Fourth Proportional to 851,292.72, 1,276,939.08 and 290,332.08

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Solution

The fourth proportional to 851,292.72, 1,276,939.08 and 290,332.08 is: 435,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,292.72 : 1,276,939.08 = 290,332.08 : x
  2. Step 2: Convert to fraction form
    851,292.72/1,276,939.08 = 290,332.08/x
  3. Step 3: Cross multiply
    851,292.72x = 1,276,939.08 × 290,332.08
  4. Step 4: Simplify right side
    851,292.72x = 370,736,379,129.69
  5. Step 5: Solve for x
    x = 370,736,379,129.69/851,292.72
  6. Step 6: Final answer
    x = 435,498.12

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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.