Home / 878,430.16-1,212,234.28-476,022.16

Finding the Fourth Proportional to 878,430.16, 1,212,234.28 and 476,022.16

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Solution

The fourth proportional to 878,430.16, 1,212,234.28 and 476,022.16 is: 656,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,430.16 : 1,212,234.28 = 476,022.16 : x
  2. Step 2: Convert to fraction form
    878,430.16/1,212,234.28 = 476,022.16/x
  3. Step 3: Cross multiply
    878,430.16x = 1,212,234.28 × 476,022.16
  4. Step 4: Simplify right side
    878,430.16x = 577,050,380,391.65
  5. Step 5: Solve for x
    x = 577,050,380,391.65/878,430.16
  6. Step 6: Final answer
    x = 656,910.94

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Double scale
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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.