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Finding the Fourth Proportional to 514,130.76, 709,584.48 and 352,853.28

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Solution

The fourth proportional to 514,130.76, 709,584.48 and 352,853.28 is: 486,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,130.76 : 709,584.48 = 352,853.28 : x
  2. Step 2: Convert to fraction form
    514,130.76/709,584.48 = 352,853.28/x
  3. Step 3: Cross multiply
    514,130.76x = 709,584.48 × 352,853.28
  4. Step 4: Simplify right side
    514,130.76x = 250,379,211,205.09
  5. Step 5: Solve for x
    x = 250,379,211,205.09/514,130.76
  6. Step 6: Final answer
    x = 486,995.20

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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.