Home / 816,357.12-1,224,547.92-310,945.92

Finding the Fourth Proportional to 816,357.12, 1,224,547.92 and 310,945.92

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Solution

The fourth proportional to 816,357.12, 1,224,547.92 and 310,945.92 is: 466,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,357.12 : 1,224,547.92 = 310,945.92 : x
  2. Step 2: Convert to fraction form
    816,357.12/1,224,547.92 = 310,945.92/x
  3. Step 3: Cross multiply
    816,357.12x = 1,224,547.92 × 310,945.92
  4. Step 4: Simplify right side
    816,357.12x = 380,768,179,568.49
  5. Step 5: Solve for x
    x = 380,768,179,568.49/816,357.12
  6. Step 6: Final answer
    x = 466,423.54

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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.