Home / 725,228.04-999,775.32-509,699.19

Finding the Fourth Proportional to 725,228.04, 999,775.32 and 509,699.19

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Solution

The fourth proportional to 725,228.04, 999,775.32 and 509,699.19 is: 702,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,228.04 : 999,775.32 = 509,699.19 : x
  2. Step 2: Convert to fraction form
    725,228.04/999,775.32 = 509,699.19/x
  3. Step 3: Cross multiply
    725,228.04x = 999,775.32 × 509,699.19
  4. Step 4: Simplify right side
    725,228.04x = 509,584,670,785.99
  5. Step 5: Solve for x
    x = 509,584,670,785.99/725,228.04
  6. Step 6: Final answer
    x = 702,654.40

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.