Home / 709,780.68-1,063,784.94-354,896.16

Finding the Fourth Proportional to 709,780.68, 1,063,784.94 and 354,896.16

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Solution

The fourth proportional to 709,780.68, 1,063,784.94 and 354,896.16 is: 531,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,780.68 : 1,063,784.94 = 354,896.16 : x
  2. Step 2: Convert to fraction form
    709,780.68/1,063,784.94 = 354,896.16/x
  3. Step 3: Cross multiply
    709,780.68x = 1,063,784.94 × 354,896.16
  4. Step 4: Simplify right side
    709,780.68x = 377,533,190,271.83
  5. Step 5: Solve for x
    x = 377,533,190,271.83/709,780.68
  6. Step 6: Final answer
    x = 531,901.19

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Double scale
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Similar ratio
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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.