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Finding the Fourth Proportional to 833,751.92, 1,250,803.86 and 321,430.16

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Solution

The fourth proportional to 833,751.92, 1,250,803.86 and 321,430.16 is: 482,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,751.92 : 1,250,803.86 = 321,430.16 : x
  2. Step 2: Convert to fraction form
    833,751.92/1,250,803.86 = 321,430.16/x
  3. Step 3: Cross multiply
    833,751.92x = 1,250,803.86 × 321,430.16
  4. Step 4: Simplify right side
    833,751.92x = 402,046,084,848.42
  5. Step 5: Solve for x
    x = 402,046,084,848.42/833,751.92
  6. Step 6: Final answer
    x = 482,213.08

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Double scale
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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.